H01S5/1225 - CPC Classification Index

ClassID:

215957 ⎘

H01S5/1225 - 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 with a varying coupling constant along the optical axis

Recent Application in this class:

20250030222

2025-01-23

NITRIDE SEMICONDUCTOR LASER ELEMENT

20210305781

2021-09-30

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

20210104869

2021-04-08

Tapered-grating single mode lasers and method of manufacturing

20200044415

2020-02-06

Distributed reflector laser

20200006922

2020-01-02

Surface emitting quantum cascade laser

20190372307

2019-12-05

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

20190157841

2019-05-23

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

20190157840

2019-05-23

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

20190140422

2019-05-09

Distributed reflector laser

#10

20190115717

2019-04-18

Structure and fabricating method of distributed feedback laser

#11

20190074663

2019-03-07

Surface emitting quantum cascade laser

#12

20180145481

2018-05-24

Laser diode with distributed feedback and method for producing

#13

20180054040

2018-02-22

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

#14

20170194766

2017-07-06

OPTICAL DEVICE AND OPTICAL MODULE

#15

20170170633

2017-06-15

Method for producing quantum cascade laser and quantum cascade laser

#16

20170170631

2017-06-15

Tunable laser device

#17

20160380407

2016-12-29

Asymmetric optical waveguide grating resonators and DBR lasers

#18

20160336708

2016-11-17

Lasing output based on varying modal index

#19

20160064897

2016-03-03

Semiconductor laser

#20

20150255957

2015-09-10

Distributed feedback laser diode

#21

20140294031

2014-10-02

Optical device and optical module

#22

20130287054

2013-10-31

Distributed feedback-laser diodes

#23

20130016753

2013-01-17

Semiconductor laser

#24

20110212556

2011-09-01

Process to form a mold of nanoimprint technique for making diffraction grating for DFB-LD

#25

20110134955

2011-06-09

Semiconductor laser diode device and method of fabrication thereof

#26

20100265979

2010-10-21

Horizontal emitting, vertical emitting, beam shaped, distributed feedback (DFB) lasers fabricated by growth over a patterned substrate with multiple overgrowth

#27

20100260225

2010-10-14

Semiconductor laser

#28

20090053656

2009-02-26

Process to form a mold of nanoimprint technique for making diffraction grating for DFB-LD

#29

20080240189

2008-10-02

Semiconductor laser

#30

20080112445

2008-05-15

Distributed feedback laser with improved optical field uniformity and mode stability

#31

20070268949

2007-11-22

Semiconductor laser

#32

20070253456

2007-11-01

Method for manufacturing a light-emitting device with a periodic structure in an active region

#33

20070248134

2007-10-25

Optical semiconductor device having diffraction grating

#34

20070125995

2007-06-07

Horizontal emitting, vertical emitting, beam shaped, distributed feedback (DFB) lasers fabricated by growth over a patterned substrate with multiple overgrowth

#35