Frequency response of a unidirectional-output optical frequency conversion device with an asymmetrical-κDBR laser structure

Hiroshi Yasaka, Kiyoto Takahata, Kazuo Kasaya, Kunishige Oe

研究成果: Article査読

7 被引用数 (Scopus)

抄録

The frequency response of a unidirectional-output optical frequency conversion device is measured. The device has a saturable absorber region within the active region, which acts as an optical gate for converted light. The 3-dB bandwidth of the device with saturable absorber region is measured to be 800 MHz, and is found to be limited by the frequency response of the saturable absorber region. To operate the device faster, lasing mode intensity modulation by input light is attempted by using the device in a laser diode mode. In this case, the electrodes of the saturable absorber and the gain regions are connected electrically, and the saturable absorber region is also biased far above the threshold condition at the same time with the gain region. The 3-dB bandwidth of the device increases to over 10 GHz, and the 10 Gb/s nonreturn-to-zero (NRZ) eye pattern can be observed when the input TM-polarized light intensity is modulated by a 10 Gb/s NRZ pseudo-random signal.

本文言語English
ページ(範囲)1306-1310
ページ数5
ジャーナルIEEE Photonics Technology Letters
5
11
DOI
出版ステータスPublished - 1993 11
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学
  • 電子工学および電気工学

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