ClassID:

215964

H01S5/1246 - 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 incorporating phase shifts plurality of phase shifts

Recent Application in this class:
#1
20250372950
2025-12-04

MULTI-WAVELENGTH DISTRIBUTED FEEDBACK LASER

#2
20240097404
2024-03-21

HIGH-POWER, SINGLE-SPATIAL-MODE QUANTUM CASCADE LASERS

#3
20230073094
2023-03-09

Optical device including laterally guided vertical-cavity surface-emitting lasers (VCSELs) outputs and related methods

#4
20230036709
2023-02-02

Monolithically integrated mid-infrared two-dimensional optical phased array

#5
20220057641
2022-02-24

Injection locked high-power low-noise integrated laser array

#6
20210344170
2021-11-04

Integrated laser detector

#7
20210328402
2021-10-21

Optical phase locked loops for generating highly-linear frequency chirps

#8
20210288470
2021-09-16

Multi-Wavelength Distributed Feedback Laser

#9
20210159667
2021-05-27

Fast phase-shift interferometry by laser frequency shift

#10
20190280462
2019-09-12

Laser device

#11
20190267779
2019-08-29

Optical amplifier

#12
20190165544
2019-05-30

Semiconductor laser device

#13
20180212400
2018-07-26

Process of forming epitaxial substrate and semiconductor optical device

#14
20180175589
2018-06-21

SEMICONDUCTOR LASER, LIGHT SOURCE UNIT, COMMUNICATION SYSTEM, AND WAVELENGTH DIVISION MULTIPLEXING OPTICAL COMMUNICATION SYSTEM

#15
20180081114
2018-03-22

Light emitting device with improved gratings and method for manufacturing the device

#16
20160276803
2016-09-22

Optical transmitter emitting light with narrowed linewidth

#17
20150288140
2015-10-08

Semiconductor DBR laser

#18
20150280402
2015-10-01

Single-step-grown transversely coupled distributed feedback laser

#19
20150155687
2015-06-04

Semiconductor laser and optical semiconductor device

#20
20140140363
2014-05-22

HIGH-YIELD HIGH-PRECISION DISTRIBUTED FEEDBACK LASER BASED ON AN ARRAY

#21
20140133505
2014-05-15

Edge-emitting semiconductor laser

#22
20130114636
2013-05-09

DBR laser diode with symmetric aperiodically shifted grating phase

#23
20130114634
2013-05-09

DBR Laser Diode With Periodically Modulated Grating Phase

#24
20100022044
2010-01-28

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

#25
20070263694
2007-11-15

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

#26
20070036188
2007-02-15

Wavelength tunable semiconductor laser having two difractive grating areas

#27
16599533
2022-07-12

Integrated high-power tunable laser with adjustable outputs

#28
16133660
2019-11-05

Integrated high-power tunable laser with adjustable outputs