@inproceedings{oai:niigata-u.repo.nii.ac.jp:00031026,
 author = {Iwahori, Minoru and Doi, Kohei and Arai, Hideaki and Sato, Takashi and Ohkawa, Masashi},
 book = {Proceedings of SPIE - the International Society for Optical Engineering, Proceedings of SPIE - the International Society for Optical Engineering},
 month = {Feb},
 note = {External cavity diode laser (ECDL) systems are presently experiencing a surge in popularity as laser light-sources, in advanced optical communications- and measurement-applications. Because such systems require that their external reflectors be precisely controlled, to eliminate low frequency fluctuations in optical output, we conducted experiments with a two-cavity version of the ECDL system for a vertical cavity surface emitting laser (VCSEL). This technique brings the added advantages of a narrower linewidth than would be achievable via a single optical feedback. VCSELs are characterized by wider oscillation linewidths than edge emitting types, so the larger effect of double optical feedback system is expected., Physics and simulation of optoelectronic devices 20 : 23-26 January 2012 : San Francisco, California, United States : Jan 2012, San Francisco, CA},
 pages = {825529-1--825529-10},
 publisher = {International Society for Optical Engineering, SPIE},
 title = {Oscillation frequency stabilization and narrowing of a laser diode by using an external cavity},
 volume = {8255},
 year = {2012}
}