A wavelength-tunable short-cavity DBR laser with active distributed Bragg reflector

Hideo Arimoto; Hiroshi Sato; Takeshi Kitatani; Tomonobu Tsuchiya; Kazunori Shinoda; Aki Takei; Hiroyuki Uchiyama; Masahiro Aoki; Shinji Tsuji

doi:10.1587/elex.2.170

LETTER

A wavelength-tunable short-cavity DBR laser with active distributed Bragg reflector

Hideo Arimoto, Hiroshi Sato, Takeshi Kitatani, Tomonobu Tsuchiya, Kazunori Shinoda, Aki Takei, Hiroyuki Uchiyama, Masahiro Aoki, Shinji Tsuji

Author information

Hideo Arimoto
Central Research Laboratory, Hitachi, Ltd.
Optoelectronic Industry and Technology Development Association (OITDA)
Hiroshi Sato
Central Research Laboratory, Hitachi, Ltd.
Takeshi Kitatani
Central Research Laboratory, Hitachi, Ltd.
Optoelectronic Industry and Technology Development Association (OITDA)
Tomonobu Tsuchiya
Central Research Laboratory, Hitachi, Ltd.
Optoelectronic Industry and Technology Development Association (OITDA)
Kazunori Shinoda
Central Research Laboratory, Hitachi, Ltd.
Aki Takei
Central Research Laboratory, Hitachi, Ltd.
Optoelectronic Industry and Technology Development Association (OITDA)
Hiroyuki Uchiyama
Central Research Laboratory, Hitachi, Ltd.
Optoelectronic Industry and Technology Development Association (OITDA)
Masahiro Aoki
Central Research Laboratory, Hitachi, Ltd.
Shinji Tsuji
Central Research Laboratory, Hitachi, Ltd.
Optoelectronic Industry and Technology Development Association (OITDA)

Keywords: Short-cavity DBR laser, Active DBR structure, Wavelength tunable laser

JOURNAL FREE ACCESS

2005 Volume 2 Issue 5 Pages 170-175

DOI https://doi.org/10.1587/elex.2.170

Details

Abstract

The incorporation of an active single-quantum well in the tuning layer of a DBR laser is proposed as a way of compensating for optical loss and achieving stable single-mode operation during wavelength tuning. Experimental results demonstrate that the structure achieves these goals while maintaining the efficiency of tuning. In application to a short-cavity DBR laser with a gain region 35-µm long, continuous wavelength gtuning over a broad 4.8nm is achieved with stable lasing properties (more than 40dB of side-mode suppression). Fast wavelength switching less than 10ns to cross a wavelength spacing of 2nm is also confirmed.

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