Pump induced lasing wavelength uncertainty in Er/Yb co-doped fiber grating lasers

Yuan zhong Xu, Hwa Yaw Tam, Shui hua Liu, M. S. Demokan

Research output: Journal article publicationConference articleAcademic researchpeer-review


Strong pump absorption in Er/Yb codoped fiber grating lasers was found to cause large optical frequency fluctuation besides lasing wavelength shift. The temperature rise due to the pump induced heating within the Er/Yb fiber cavity was theoretically investigated, which caused the lasing wavelength shift with the increase of 980 nm pump power. An experimental setup was also built to estimate the optical frequency fluctuation under a fixed pump power. The observed 1.7 GHz optical frequency fluctuation was reduced to less than 90 MHz through proper thermal dissipation.
Original languageEnglish
Pages (from-to)206-212
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Dec 1999
Externally publishedYes
EventProceedings of the 1999 Optical Devices for Fiber Communications - Boston, MA, United States
Duration: 20 Sept 199921 Sept 1999

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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