Analysis of Gain and Frequency in a DFB laser with Cleaved Facets (결정 벽개면을 갖는 DFB 레이저의 이득과 주파수 분석)

Lee Changseok (이창석); Kwon Kee Young (권기영); Ki Jang Geun (기장근); HYUNMOOK CHO (조현묵)

Analysis of Gain and Frequency in a DFB laser with Cleaved Facets

Journal of Software Assessment and Valuation
Abbr : JSAV
2020, 16(2), pp.117-125
Publisher : Korea Software Assessment and Valuation Society
Research Area : Engineering > Computer Science
Received : December 6, 2020
Accepted : December 21, 2020
Published : December 31, 2020

Lee Changseok ¹, Kwon Kee Young ², Ki Jang Geun ², HYUNMOOK CHO ²

¹한밭대학교
²공주대학교

Candidate

ABSTRACT

In this paper, when both the refractive index grating and the gain grating exist in a 1.55um DFB laser with two cleaved mirror facets, when the phase of  is fixed to 0 and the phase of is changed to   , , , , the change in frequency and oscillation gain was theoretically analyzed. In the case of    , the oscillation gain required for lasing is the lowest and the most stable frequency operation is obtained in the case of ( phase=,  phase=) and   , when  is varied from 0.1 to 10. In the case of    , when ( phase=,  phase= ) and   , the oscillation gain required for lasing is the lowest and the difference between the oscillation gains of the higher-order modes is large so that the most stable frequency operation is obtained.

KEYWORDS

LD, DFB LD, Index Grating, Gain Grating, Lasing Frequency, Grating Phase

Citation status

* References for papers published after 2023 are currently being built.

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