Title :
Attenuator integrated waveguide photodetectors (AIPD) with variable sensitivity range of 11 dB
Author :
Yokouchi, Noriyuki ; Yoshida, Junji ; Yamanaka, Nobumitsu ; Yamaguchi, Takeharu ; Nishikata, Kazuaki
Author_Institution :
R&D Labs., Furukawa Electr. Co. Ltd., Yokohama, Japan
fDate :
6/1/1998 12:00:00 AM
Abstract :
A waveguide photodetector monolithically integrated with an optical attenuator based on the Franz-Keldysh effect at the input section is proposed. The intrinsic sensitivity of the device without attenuation is 0.25 A/W. The effective sensitivity is reduced by applying the reverse bias at the attenuator section. The largest variable sensitivity range of 11 dB is realized at the reverse bias of 32 V.
Keywords :
integrated optics; integrated optoelectronics; optical communication equipment; optical waveguides; photodetectors; sensitivity; 32 V; Franz-Keldysh effect; attenuator integrated waveguide photodetectors; attenuator section; effective sensitivity; input section; intrinsic sensitivity; largest variable sensitivity range; monolithically integrated; reverse bias; variable sensitivity range; waveguide photodetector; Circuits; Optical attenuators; Optical coupling; Optical distortion; Optical feedback; Optical receivers; Optical sensors; Optical waveguides; Photodetectors; Radio frequency;
Journal_Title :
Photonics Technology Letters, IEEE
