Mode-Hopping Detection Technique for External-Cavity Laser Diodes

概要

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We developed an external-cavity laser diode (ECLD) for a holographic memory system with a wavelength tunability of 5 nm. To stabilize the single-mode operation, a mode-hopping detection technique using a time differential of output voltages of a single-element photodiode is proposed. By changing the drive current of the laser diode, we could obtain mode detection signals when the ECLD was in multimode operation. This result indicates that this technique is suitable for maintaining a stable single-mode operation of the ECLD.
2009-03-25

著者

吉田慎也
シャープ株式会社
Yoshida Shinya
Optical Disk Systems Development Center Sharp Corporation
Kurata Yukio
Optical Disk Systems Development Center Sharp Corporation
Yoshida Shinya
Precision Technology Development Center, Production Technology Development Group, Sharp Corporation, Tenri, Nara 632-8567, Japan
Yoshida Shinya
Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, 2613-1 Ichinomoto, Tenri, Nara 632-8567, Japan
Tanaka Masaki
Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, 2613-1 Ichinomoto, Tenri, Nara 632-8567, Japan
Nagasaka Yukiko
Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, 2613-1 Ichinomoto, Tenri, Nara 632-8567, Japan
Saeki Tetsuo
A1257-1 Project Team (A), Sharp Corporation, 247 Sojo, Nutanishi, Mihara, Hiroshima 729-0474, Japan
Watanabe Yukio
Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, 2613-1 Ichinomoto, Tenri, Nara 632-8567, Japan
Oka Hiroyuki
Engineering Department 2, Compound Semiconductor Systems Division, Electronic Components Group, Sharp Corporation, 247 Sojo, Nutanishi, Mihara, Hiroshima 729-0474, Japan
Miyake Takahiro
Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, 2613-1 Ichinomoto, Tenri, Nara 632-8567, Japan
Ueyama Tetsuo
A1257-1 Project Team (A), Sharp Corporation, 247 Sojo, Nutanishi, Mihara, Hiroshima 729-0474, Japan
Kurata Yukio
Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, 2613-1 Ichinomoto, Tenri, Nara 632-8567, Japan
Nagasaka Yukiko
Optical Memory Research Development, Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, Tenri, Nara 632-8567, Japan
Tanaka Masaki
Optical Memory Research Development, Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, Tenri, Nara 632-8567, Japan

Mode-Hopping Detection Technique for External-Cavity Laser Diodes

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