Title:
LASER HAVING TUNABLE WAVELENGTH
Document Type and Number:
WIPO Patent Application WO/2019/195988
Kind Code:
A1
Abstract:
Disclosed in the present application is a laser having a tunable wavelength. The laser having a tunable wavelength comprises a reflective semiconductor optical amplifier, three couplers and at least two micro-ring resonators; the reflective semiconductor optical amplifier is connected to one port of a first coupler, a portion of the at least two micro-ring resonators is placed between another port of the first coupler and one port of a second coupler, the other portion of the at least two micro-ring resonators is placed between a third port of the first coupler and a second port of the second coupler, and a third port and fourth port of the second coupler are connected to two ports of a third coupler. By means of a symmetrical design, the laser having a tunable wavelength disclosed in the present application may increase optical signal outputting efficiency.
Inventors:
ZHAO JIALIN (CN)
CHEN WEI (CN)
SONG XIAOLU (CN)
CHEN WEI (CN)
SONG XIAOLU (CN)
Application Number:
PCT/CN2018/082405
Publication Date:
October 17, 2019
Filing Date:
April 09, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01S5/14
Foreign References:
| US20090122817A1 | 2009-05-14 | |||
| US20040125846A1 | 2004-07-01 | |||
| JP2010087472A | 2010-04-15 | |||
| US20170139237A1 | 2017-05-18 |
Other References:
See also references of EP 3764489A4
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