| ReturnTo Theme-Group-Choice | Onelevelup |
| G02B6/26-6/27,301;6/30-6/34;6/42-6/43 | AA | AA00 FUNCTION OR USE OF MODULE |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA08 | AA09 | AA10 | |
| . Optical bidirectional communication | . Optical Add-Drop Multiplexers or ADM | . Adjusting dispersions e.g. dispersion compensations or pulse compressions | . Light deflectors e.g. optical switches | . Light-modulators light-attenuators or control of light | . Optical isolators or circulators | . for medical use | . Optical pickups | . for illumination or lights | ||||
| AA11 | AA12 | AA13 | AA14 | AA15 | AA17 | |||||||
| . Optical interconnections | . . between boards | . for high power laser beam or working by laser beam | . Sensors measuring or testing (AA15 and GA10 take precedence) | . Printings printers or image readings | . Other special use | |||||||
| AB | AB00 COMBINATION OF LIGHT GUIDES OR OPTICAL ELEMENTS |
AB01 | AB02 | AB04 | AB05 | AB06 | AB08 | AB09 | ||||
| . between light guide and light guide (AB08 takes precedence) | . . from light guide to light-receiving element to light-emitting element and to light guide fibre | . between fibres and optical elements (AB02 takes precedence) | . . Fibres and light-receiving element | . . Fibres and light-emitting elements | . between fibres and planar waveguides | . . coupled directly | ||||||
| AB11 | AB12 | AB14 | AB15 | AB16 | ||||||||
| . between planar waveguides and optical elements | . . having optical elements arranged on waveguide substrates | . Others | . . between fibres and unknown parts | . . between planar waveguides and unknown parts | ||||||||
| AC | AC00 TYPE OF OPTICAL TRANSMITTING OR RECEIVING MODULE |
AC01 | AC02 | AC03 | AC04 | AC05 | AC06 | |||||
| . Flat mounting | . . having detachable connectors | . . moulded entirely | . . having light-path converting means between light guides and optical elements | . . . arranging light guides on the upper surface which is equipped with optical element | . . coupling synchrotron light radiated from light guide to optical elements | |||||||
| AC11 | AC12 | AC13 | AC14 | AC15 | ||||||||
| . Other mountings | . . having detachable connectors e.g. light receptacles | . . moulded entirely | . . mounted by tubes or CAN types | . . coupling radiation light from light guide to optical elements | ||||||||
| BA | BA00 LIGHT GUIDE |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | BA07 | BA08 | BA09 | BA10 | |
| . Fibres | . . Kinds | . . . Single-mode (SM) | . . . Multi-mode (MM) or graded-index (GI) fibres (BA09 takes precedence) | . . . maintaining the plane of polarisation | . . . Plastic optical fibres (POF) | . . . having optical amplifiers or rare earths | . . . being coreless or having column-type light guide materials | . . . Dispersion compensations or dispersion shift fibres | . . . having liquid core | |||
| BA11 | BA12 | BA13 | BA14 | BA15 | BA16 | BA17 | BA18 | BA19 | BA20 | |||
| . . . having hollow core or photonic crystal fibres | . . . Short-length fibres | . . connecting different kinds of fibres | . . Structures (BC24 takes precedence) | . . . Fibre arrays or fibre bundles | . . . . being two-dimensional | . . . Non-circular cores | . . . Multi-cores | . . End surface shapes of fibres or cores | . . . inclined | |||
| BA21 | BA22 | BA23 | BA24 | |||||||||
| . . . being tapered conical pyramid or wedge-shaped (BA23 takes precedence) | . . . with curved faces | . . . with variable diameter of cores | . . Fibre couplers | |||||||||
| BA31 | BA32 | BA33 | BA34 | BA35 | BA36 | BA37 | BA38 | |||||
| . Planar waveguides (BB02 takes precedence) | . . Optical coupling structure to planar waveguides from outside | . . . Prisms | . . . Diffraction gratings or holograms | . . . having tapered waveguide being ends (BB04 takes precedence) | . . . . having tapers which become narrower as the dimension of guided ray becomes larger | . . . . having tapers which become larger as the dimension of guided ray becomes larger | . . . having auxiliary waveguides at ends | |||||
| BA41 | BA42 | BA43 | BA44 | BA45 | BA46 | BA47 | BA48 | BA49 | ||||
| . . characterised by waveguide structures (BA35 and BC25 take precedence) | . . . being coreless or having planar light guide members | . . . having hollow core or photonic crystals | . . . Multiplexing and demultiplexing | . . . . Directional couplers | . . . . Y or X branching | . . . . Arrayed-waveguide grating (AWG) | . . . . Mach-Zehnder type | . . . . having wavelength selective elements | ||||
| BA51 | BA52 | BA53 | BA54 | BA55 | BA56 | BA58 | BA59 | |||||
| . . Materials thereof | . . . Glass or quartz | . . . Semiconductors | . . . LiNbO3 or LiTaO3 | . . . Polymers | . . . . flexible | . . Other structures | . . . having structures for reinforcement e.g. jigs | |||||
| BB | BB00 OPTICAL ELEMENT |
BB01 | BB02 | BB03 | BB04 | BB05 | BB06 | BB07 | BB08 | BB09 | ||
| . Kinds | . . Semiconductor light-emitting elements or semiconductor optical amplifiers | . . . Surface type e.g. VCSEL | . . . having spot size conversion structures | . . . . having auxiliary waveguides | . . . . having tapers which become narrower as the dimension of waveguide light becomes larger | . . . . having tapers which become larger as the dimension of guided ray becomes larger | . . Power lasers | . . Lamp | ||||
| BB12 | BB13 | BB14 | BB15 | BB17 | ||||||||
| . . Light-receiving elements | . . . Surface type | . . . for monitoring | . . . . for both receiving signals and monitoring | . . Arrays | ||||||||
| BB21 | BB22 | BB23 | BB24 | BB25 | BB26 | BB27 | ||||||
| . Loading of optical elements | . . on stems | . . on lead frames | . . on the side or the opposite side of the light guide | . . on plane substrates (BB22 and BB23 take precedence) | . . . Junction-down | . . . Junction-up | ||||||
| BB31 | BB32 | BB33 | ||||||||||
| . Structures feeding power to optical elements | . . Via holes | . . Substrates having conductive patterns | ||||||||||
| BC | BC00 OPTICAL ELEMENTS |
BC01 | BC02 | BC03 | BC04 | BC05 | BC06 | BC07 | BC08 | BC09 | BC10 | |
| . Lenses | . . Simple lenses | . . . aspherical | . . . Focusing lenses e.g. GRIN | . . . cylindrical | . . . Fresnel lenses or zone plates | . . Lens arrays | . . Plano-convex lenses | . . Other lenses | . . adding functions other than lens | |||
| BC11 | BC12 | BC13 | BC14 | BC16 | BC17 | |||||||
| . . Combinations of lenses | . . . of plural simple lenses | . . . of lens at the end of a fibre and simple lenses | . . characterised by manufacturing methods of lenses | . Optical attenuators obturating members light absorbing member or shutters | . . variable (BA31 takes precedence) | |||||||
| BC21 | BC23 | BC24 | BC25 | BC26 | BC27 | BC28 | BC29 | |||||
| . Holograms | . Gratings | . . Fibre gratings (FG) | . . Planar waveguide types | . . Long period gratings | . . Oblique gratings | . . Chirped gratings | . . having plural gratings serially-arranged | |||||
| BC31 | BC32 | BC33 | ||||||||||
| . Wavelength filters (BC21 and BC23 takes precedence) | . . dividing or composing wavelength | . . having plural filters serially-arranged | ||||||||||
| BC41 | BC42 | BC43 | BC44 | BC45 | BC46 | BC47 | BC48 | BC49 | BC50 | |||
| . Polarising elements | . . Polarisers | . . Birefringent elements | . . . Lambda/2 plates | . . . Lambda/4 plates | . . Nonreciprocal elements | . . . Isolators | . . . independent from polarisation | . . Liquid crystals | . . Polarising beam splitter (BC43 takes precedence) | |||
| BC51 | BC52 | BC53 | BC54 | BC55 | BC56 | BC58 | ||||||
| . Reflective elements (BC21 BC23 BC31 and BC41 take precedence) | . . with curved faces | . . Half mirrors or beam splitters | . . Diffuse reflecting mirrors | . . Prisms for reflection | . . Grooves | . Light scattering elements or diffuse elements (BC54 takes precedence) | ||||||
| BC61 | BC62 | BC64 | ||||||||||
| . Prisms (BC55 takes precedence) | . . for dividing wavelength | . Apertures or microspores | ||||||||||
| BC71 | BC72 | BC73 | BC74 | BC75 | BC76 | BC80 | ||||||
| . Other transparent optical members (viewpoint BA and DA17 take precedence) | . . having optical functions on two or more surfaces (BC10 takes precedence) | . . Transparent resins | . . . having self-aligning waveguides | . . . Double sealing with transparent resins | . . matching reflective index | . Others | ||||||
| CA | CA00 STRUCTURE FOR DEPOSITING, MOUNTING, OR ALIGNING EACH ELEMENT |
CA01 | CA02 | CA03 | CA05 | CA06 | CA07 | |||||
| . Structures of cylindrical bodies | . . characterised by structure of cylindrical bodies | . . . changing diameters of holes axially (CA06 takes precedence) | . . having optical elements at the side of fibres | . . . mounting the elements in grooves or the like which are formed in ferrules or the like | . . having cylindrical bodies specially adapted for optical elements | |||||||
| CA11 | CA12 | CA13 | CA15 | CA16 | CA18 | CA19 | CA20 | |||||
| . Structures for aligning elements | . . Grooves slits or concaves | . . . V-shaped pyramid or tapered | . . inside holes | . . . changing diameters of holes axially | . . characterised by positioning or mounting by surfaces (CA12-CA16 take precedence) | . . . Markers | . . . . formed simultaneously with other elements | |||||
| CA21 | CA22 | CA25 | CA26 | CA28 | ||||||||
| . . . Self-aligning by surface tension | . . . mounting on end faces or sections | . . having clipping and pressing member | . . . with grooves | . . Elements per se having structure for positioning | ||||||||
| CA31 | CA33 | CA34 | CA35 | CA36 | ||||||||
| . Structures for aligning positions between elements | . . having common loading members for positioning | . . . Substrates for mounting | . . . Hollow bodes e.g. sleeves | . . . . Split sleeves | ||||||||
| CA41 | CA42 | CA43 | CA45 | CA46 | CA48 | CA49 | CA50 | |||||
| . . between element loading members | . . . Grooves or concaves (CA51 takes precedence) | . . . . V-shaped or pyramid | . . . inside holes | . . . . changing diameters of holes axially | . . . having interposed members | . . . . rod-like | . . . . spherical | |||||
| CA51 | CA55 | CA56 | CA57 | CA58 | CA59 | |||||||
| . . . projected and recessed shapes or complementary shapes (CA45 CA46 or CA49 take precedence) | . . . characterised by positioning or mounting by surfaces (CA42-CA51 take precedence) | . . . . Markers | . . . . . formed simultaneously with other elements | . . . . Self-aligning by surface tension | . . . . Re-assembling after cutting | |||||||
| CA61 | CA62 | CA63 | CA65 | CA66 | CA67 | |||||||
| . . in the direction of optical axis | . . . Spacers | . . . Stoppers | . . arranging by displacing optical members | . . . to the direction of optical axis | . . . to the direction or angle orthogonal to optical axis | |||||||
| CA71 | CA72 | CA73 | CA74 | CA75 | CA76 | CA77 | CA78 | |||||
| . Materials of alignment members | . . Semiconductors | . . . Silicon | . . Glass or silica (SiO2) | . . Resins | . . . flexible | . . Ceramics | . . Metals or alloys | |||||
| CB | CB00 ACTIVE ALIGNMENT |
CB01 | CB02 | CB03 | CB04 | CB05 | CB06 | CB07 | ||||
| . Methods | . . observing using microscopes cameras or the like | . . . using alignment marks | . . characterised by means to calculating optical position | . . . by image processing | . . detecting the degree of optical coupling directly | . . . using independent light guide for monitor | ||||||
| CB11 | CB12 | CB13 | CB14 | CB15 | CB16 | CB17 | CB18 | |||||
| . characterised by positioning means of elements | . . adjusting the degree of screwing-in | . . adjusting with screws | . . adjusting using eccentricity | . . adjusting using plastic deformation | . . adjusting using wedge-like members | . . correcting parallelism by pressing | . . adjusting using movable arms | |||||
| CB21 | CB22 | CB23 | CB24 | CB25 | CB26 | CB27 | CB28 | |||||
| . Optical members to be moved | . . Optical fibres | . . . Arrays or bundle of fibres | . . Planar waveguides | . . Optical elements | . . Lenses | . . Filters | . . Other optical members | |||||
| CB31 | CB32 | CB33 | CB34 | CB35 | CB36 | CB37 | ||||||
| . Directions to be aligned | . . to the direction perpendicular to optical axis (X-Y) | . . to the direction of optical axis (Z) | . . Angles | . Procedures including fixed processes | . . with coarse adjustment processes | . . adjusting X and Y alternately | ||||||
| CC | CC00 FIXING MECHANISM (VIEWPOINT CD TAKES PRECEDENCE EXCLUDING CC26) |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | CC08 | CC09 | CC10 | |
| . Permanent fixation | . . Thermosetting adhesives | . . Photosetting adhesives | . . Low-melting glass | . . Solder | . . . having bases e.g. metallised layer | . . Brazing | . . Welding | . . . using welding rings | . . . Laser welding | |||
| CC11 | CC12 | |||||||||||
| . . Fusion | . . Thermocompressing or heat-shrinking tubes | |||||||||||
| CC21 | CC22 | CC24 | CC26 | CC27 | CC28 | CC29 | CC30 | |||||
| . Fixing by thread-engaging threaded mounting or screws | . . screwing in helical grooves | . Fixing using electrostatic or magnetic force | . by elastic force | . . Coil springs or springs | . . Leaf springs or wire springs (CC29 takes precedence) | . . Clips | . . Press fitting | |||||
| CC31 | CC32 | CC33 | ||||||||||
| . Auxiliary means for fixation | . . Shock-absorbing members | . . for improving adhesion or contact by roughening or the like | ||||||||||
| CD | CD00 OPTICAL CONNECTOR STRUCTURE, INCLUDING STRUCTURE OF RECEIVER AND JACK |
CD01 | ||||||||||
| . with drawings describing assembling or disassembling | ||||||||||||
| CD11 | CD12 | CD13 | CD14 | CD17 | CD18 | CD19 | CD20 | |||||
| . Locking or fixing means | . . by elastic force | . . . Locking arms | . . . . having locking holes | . . . Energising direction of locking bodies | . . . . for inserting | . . . . external | . . . . internal | |||||
| CD21 | CD22 | CD23 | CD24 | CD26 | CD27 | CD28 | CD29 | |||||
| . . . Drawing or releasing means | . . . . having operation parts | . . . . . having locking means | . . . . by single-purpose tools | . . Bayonet or engagement between L-shaped grooves and projections | . . Thread-engagements | . . using electrostatic or magnetic force | . . using buckling force of optical fibres | |||||
| CD31 | CD32 | CD33 | CD34 | CD36 | CD37 | CD38 | ||||||
| . Guides for insertion | . . Engagement between protrusions or projections and guide groove | . . Guide pins | . . Tapers | . Means for preventing misinsertion | . . by indications or marks | . . by shapes | ||||||
| CD41 | CD42 | CD43 | CD44 | CD45 | CD46 | CD47 | CD50 | |||||
| . having additional functions | . . Functions for selecting wavelength | . . . Fibre gratings | . . Functions for damping light | . . Functions for converging or collimating | . . Optical isolators | . . combined with photoelectric means | . Others | |||||
| DA | DA00 PACKAGE |
DA01 | DA02 | DA03 | DA04 | DA05 | DA07 | DA08 | DA09 | DA10 | ||
| . without case | . . Resin or gel sealing | . . . having high refractive index regions for optical waveguiding | . . . having additional functions e.g. lenses holograms or diffracting gratings | . . . Recesses for aligning fibres | . with cases | . . having optical function (DA17 and DA28 take precedence) | . . . having function for light absorption or light scattering in internal surface of cases | . . . having reflection function in internal surface of cases | ||||
| DA11 | DA12 | DA13 | DA14 | DA17 | DA18 | DA19 | ||||||
| . . Materials | . . . Resins | . . . Metals | . . . Ceramics | . . characterised by transparent windows | . . . inclined | . . . having additional functions e.g. lenses holograms or diffracting gratings | ||||||
| DA21 | DA22 | DA23 | DA24 | DA25 | DA26 | DA27 | DA28 | DA29 | ||||
| . . Sealing | . . . filled in case | . . . . Gas | . . . . Resins or gels | . . . . Vacuum | . . . for covering external surface of cases | . . . at joints | . . . . characterised by perforated parts of optical fibres (DA17 takes precedence) | . . . . . Shapes of perforated parts | ||||
| DA31 | DA32 | DA33 | DA34 | DA35 | DA36 | DA39 | ||||||
| . . . Materials of sealing parts | . . . . Solder | . . . . Low-melting glass | . . . . Resins | . . . Shapes of precursors | . . . . ring-like or coil-like | . . having electronic circuits | ||||||
| DB | DB00 OTHER DETAILS OF STRUCTURE |
DB01 | DB02 | DB03 | DB04 | DB05 | DB07 | DB08 | DB09 | DB10 | ||
| . for protection (DA02 and DA07 take precedence) | . . for preventing dust or fouling | . . . Cleaning means or tools | . . Protective members and function e.g. reflection or light guides | . . for damp-proof waterproof or airtight sealing | . Antireflection structures | . . having coating | . . having inclined end surfaces (BA19 and DA18 take precedence) | . . arranged elements obliquely to optical axis | ||||
| DB11 | DB12 | DB13 | DB14 | DB15 | DB16 | DB19 | ||||||
| . Regulating temperature | . . with radiating fins or heat-sinks | . . by Peltier elements | . . By liquids | . . by heat insulation | . . with heaters or heating means (DB13 takes precedence) | . Identification or indication | ||||||
| EA | EA00 MANUFACTURING METHOD |
EA01 | EA02 | EA03 | EA04 | EA05 | EA06 | EA07 | EA08 | EA09 | ||
| . Working | . . mechanical | . . using laser beam (CC10 takes precedence) | . Etching | . Photolithography | . with moulds or stampers | . Heat treatment (CC11 takes precedence) | . . for TEC or lensed fibres | . . Stretching | ||||
| EA11 | EA12 | EA13 | EA15 | |||||||||
| . for forming thin films | . . Selective growth | . . Flame hydrolysis deposition (FHD) | . Others | |||||||||
| FA | FA00 DEFINING PARAMETER |
FA01 | FA02 | FA03 | FA04 | FA05 | FA06 | |||||
| . Refractivity | . Expansion coefficient | . Young's modulus or elastic modulus | . Viscosity | . Numerical apertures or incidence and output angles | . characterised by defining measurement | |||||||
| GA | GA00 ASSEMBLING DEVICE, JIG, TOOL, OR ADDITIONAL COMPONENT |
GA01 | GA02 | GA05 | GA06 | GA07 | GA08 | GA09 | GA10 | |||
| . Apparatuses for assembling or mounting | . Tools or jigs (CD24 and DB03 take precedence) | . Additional components | . . improving electrical features | . . . Electromagnetic shields | . . . High-frequency | . . Alerts | . . inspecting light guides connectors or optical modules | |||||
| HA | HA00 PURPOSE OR EFFECT |
HA01 | HA02 | HA03 | HA04 | HA05 | HA06 | HA07 | HA08 | HA09 | HA10 | |
| . Measures against stray light | . Measures for safety | . . against exposure | . . . having connectors in association with optical elements | . Measures against heat | . . independent from temperature | . Measures against water moisture or dew condensation | . independent from polarisation | . Measures against deterioration of gastightness | . Wider bandwidth or independent from wavelength | |||
| HA11 | HA12 | HA13 | HA15 | |||||||||
| . Expanding tolerance | . Matching mode fields with light source or the like | . Integration or separation (BC10 and BC72 take precedence) | . Improving physical strength or preventing distortion |