Narrow line width frequency comb source based on an injection-locked III-V-on-silicon mode-locked laser.
Opt Express
; 24(5): 5277-5286, 2016 Mar 07.
Article
en En
| MEDLINE
| ID: mdl-29092352
ABSTRACT
In this paper, we report the optical injection locking of an L-band (â¼1580 nm) 4.7 GHz III-V-on-silicon mode-locked laser with a narrow line width continuous wave (CW) source. This technique allows us to reduce the MHz optical line width of the mode-locked laser longitudinal modes down to the line width of the source used for injection locking, 50 kHz. We show that more than 50 laser lines generated by the mode-locked laser are coherent with the narrow line width CW source. Two locking techniques are explored. In a first approach a hybrid mode-locked laser is injection-locked with a CW source. In a second approach, light from a modulated CW source is injected in a passively mode-locked laser cavity. The realization of such a frequency comb on a chip enables transceivers for high spectral efficiency optical communication.
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MEDLINE
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En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2016
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Article