Equivalent λ/4 phase shift to improve the single longitudinal mode property of asymmetric sampled Bragg grating semiconductor laser

Author

Zhou, Yating ; Shi, Yuechun ; Li, Simin ; Li, Jingsi ; Chen, Xiangfei

Author_Institution

Microwave-Photonics Technol. Lab., Nanjing Univ., Nanjing, China

fYear

2010

fDate

5-9 Oct. 2010

Firstpage

89

Lastpage

92

Abstract

A special sampled Bragg grating (SBG) configuration, which consists of two sections with same length and different effective refractive index, is proposed. Because an equivalent λ/4 phase shift based on reconstruction equivalent chirp (REC) technology is introduced, the asymmetric structure can effectively suppress the lasing in its 0th channel, and then its single longitudinal mode (SLM) property is improved. This proposed method can also be used to fabricate high performance multiwavelength laser array (MLA) with high yield.

Keywords

Bragg gratings; chirp modulation; laser modes; optical phase shifters; quantum well lasers; refractive index; asymmetric sampled Bragg grating semiconductor laser; asymmetric structure; equivalent phase shift; high performance multiwavelength laser array; reconstruction equivalent chirp; refractive index; single longitudinal mode; single longitudinal mode property; Arrays; Distributed feedback devices; Laser modes; Refractive index; Semiconductor laser arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics (MWP), 2010 IEEE Topical Meeting on

Conference_Location

Montreal, QC

Print_ISBN

978-1-4244-7824-8

Type

conf

DOI

10.1109/MWP.2010.5664221

Filename

5664221