ClassID:

215953

H01S5/1212 - CPC Classification

Classification description:

Semiconductor lasers; Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers having a non constant or multiplicity of periods Chirped grating

Recent Application in this class:
#1
20250316960
2025-10-09

VCSEL/PCSEL LIGHT COUPLING INTO THE MULTILAYER WAVEGUIDE FOR SHORT REACH OPTICAL COMMUNICATION

#2
20240313505
2024-09-19

MULTI-WAVELENGTH EXTERNAL CAVITY LASER

#3
20220360047
2022-11-10

WIDE BANDWIDTH LASER CHIP

#4
20220263286
2022-08-18

HIGH KAPPA SEMICONDUCTOR LASERS

#5
20220043155
2022-02-10

Precisely controlled chirped diode laser and coherent LIDAR system

#6
20210305781
2021-09-30

Ultra-low noise, highly stable single-mode operation, high power, Bragg grating based semiconductor laser

#7
20200006916
2020-01-02

Method for tuning emission wavelength of laser device

#8
20190280462
2019-09-12

Laser device

#9
20190025431
2019-01-24

Precisely controlled chirped diode laser and coherent lidar system

#10
20180366904
2018-12-20

Robust, compact, field-able tunable integrated photonic device

#11
20170310083
2017-10-26

Tunable laser and method for tuning a lasing mode

#12
20170149209
2017-05-25

Optical transmitter implementing wavelength tunable diode

#13
20170104307
2017-04-13

Single mode reflector using a nanobeam cavity

#14
20160329683
2016-11-10

Method of controlling wavelength tunable laser, control data structure of wavelength tunable laser, and wavelength tunable laser

#15
20160252676
2016-09-01

Optical semiconductor resonator, optical semiconductor device, and optical module

#16
20160204565
2016-07-14

Ultrashot pulse fiber laser

#17
20160156415
2016-06-02

Multi-channel tunable laser

#18
20160134082
2016-05-12

Tunable semiconductor laser based on reconstruction-equivalent chirp and series mode or series and parallel hybrid integration, and preparation thereof

#19
20160079732
2016-03-17

Method for controlling wavelength-tunable laser

#20
20160036199
2016-02-04

Method to determine operating conditions of wavelength tunable laser diode and to control optical transmitter providing wavelength tunable laser diode

#21
20160006212
2016-01-07

Laser apparatus and method to re-tune emission wavelength tunable LD

#22
20150288140
2015-10-08

Semiconductor DBR laser

#23
20150255953
2015-09-10

External cavity laser with single mode-hop-free tuning

#24
20150222078
2015-08-06

Method for switching output wavelength of tunable wavelength laser, method for switching wavelength of tunable wavelength laser, and tunable wavelength laser device

#25
20150207290
2015-07-23

Method and apparatus for fabrication of controlled chirp gratings

#26
20150188284
2015-07-02

Method for controlling wavelength tunable laser

#27
20150117479
2015-04-30

Method for controlling wavelength tunable laser

#28
20150117478
2015-04-30

Method for testing tunable wavelength laser device and tunable wavelength laser device

#29
20150092799
2015-04-02

Optical semiconductor device and method of fabricating the same

#30
20150092798
2015-04-02

Method to determine operating conditions of wavelength tunable laser diode and to control optical transmitter providing wavelength tunable laser diode

#31
20150071584
2015-03-12

Optical semiconductor resonator, optical semiconductor device, and optical module

#32
20150063384
2015-03-05

Method for controlling tunable wavelength laser

#33
20150063383
2015-03-05

Method for controlling tunable wavelength laser

#34
20150036705
2015-02-05

Method for controlling wavelength-tunable laser

#35
20140300953
2014-10-09

Tunable multi-mode laser

#36
20140036940
2014-02-06

Method of controlling wavelength tunable laser, control data structure of wavelength tunable laser, and wavelength tunable laser

#37
20140010249
2014-01-09

Method to tune emission wavelength of wavelength tunable laser diode

#38
20130343411
2013-12-26

Method to tune emission wavelength of semiconductor laser diode

#39
20130308666
2013-11-21

Semiconductor laser

#40
20130148676
2013-06-13

Wavelength monitor, wavelength lockable laser diode and method for locking emission wavelength of laser diode

#41
20130114636
2013-05-09

DBR laser diode with symmetric aperiodically shifted grating phase

#42
20130094528
2013-04-18

Method to control emission wavelength of tunable laser diode

#43
20130094527
2013-04-18

WAVELENGTH MONITOR, WAVELENGTH LOCKABLE LASER DIODE AND METHOD FOR LOCKING EMISSION WAVELENGTH OF LASER DIODE

#44
20130070795
2013-03-21

METHOD TO SWITCH EMISSION WAVELENGTH OF TUNABLE LASER DIODE

#45
20130055545
2013-03-07

Method to assemble optical devices with optically interfering device

#46
20130039370
2013-02-14

Method of controlling wavelength-tunable laser

#47
20130003762
2013-01-03

Wavelength tunable laser diode

#48
20120301156
2012-11-29

OPTICAL TRANSMITTER SUBASSEMBLY

#49
20120218763
2012-08-30

Wavelength Conversion Light Source Device

#50
20120093178
2012-04-19

Wavelength tunable external cavity laser beam generating device

#51
20110292960
2011-12-01

WAVELENGTH TUNABLE SEMICONDUCTOR LASER

#52
20110292955
2011-12-01

Tunable semiconductor laser diode

#53
20110235667
2011-09-29

Semiconductor laser

#54
20110228800
2011-09-22

Method for tuning semiconductor laser

#55
20110216789
2011-09-08

Semiconductor laser device

#56
20110200062
2011-08-18

Method of controlling wavelength-tunable laser

#57
20110116524
2011-05-19

Semiconductor laser device and method for controlling semiconductor laser

#58
20110096804
2011-04-28

Optical semiconductor device and method of controlling the same

#59
20110090931
2011-04-21

Semiconductor diffraction grating device and semiconductor laser

#60
20110069727
2011-03-24

Bragg grating structure

#61
20100296532
2010-11-25

LASER DEVICE AND LASER DEVICE CONTROL DATA

#62
20100254422
2010-10-07

Semiconductor laser

#63
20100150579
2010-06-17

Semiconductor optical element, semiconductor laser using the semiconductor optical element, and optical transponder using the semiconductor laser

#64
20100142567
2010-06-10

Tunable laser

#65
20100022044
2010-01-28

Laser device, laser module, semiconductor laser and fabrication method of semiconductor laser

#66
20090290613
2009-11-26

EXTERNAL CAVITY LASER ASSEMBLY INCLUDING EXTERNAL CHIRPED EXIT REFLECTOR FOR IMPROVED LINEARITY

#67
20090225796
2009-09-10

Diffraction grating device, laser diode, and wavelength tunable filter

#68
20090161717
2009-06-25

Bragg reflector grating

#69
20090022186
2009-01-22

Method of controlling semiconductor laser

#70
20080285037
2008-11-20

Multi-wavelength mode locked laser

#71
20080247707
2008-10-09

Optical semiconductor device and method of controlling the same

#72
20080240175
2008-10-02

Bragg grating reflection strength control

#73
20080240174
2008-10-02

Tunable infrared lasers for gas-phase spectroscopy

#74
20080232411
2008-09-25

Bragg grating structure

#75
20080166134
2008-07-10

Optical transmitter having a widely tunable directly modulated laser and periodic optical spectrum reshaping element

#76
20070263694
2007-11-15

Laser device, laser module, semiconductor laser and fabrication method of semiconductor laser

#77
20070248134
2007-10-25

Optical semiconductor device having diffraction grating

#78
20070036188
2007-02-15

Wavelength tunable semiconductor laser having two difractive grating areas

#79
20060194358
2006-08-31

Tunable semiconductor laser and method thereof

#80
20050152026
2005-07-14

Gain-clamped optical amplifier

#81
20050117622
2005-06-02

Distributed feedback laser with differential grating

#82
20050100075
2005-05-12

Ultra-compact, low cost high powered laser system

#83
20050053102
2005-03-10

Tuneable laser