Gain characteristics of a high-concentration Er3+ doped phosphate glass waveguide

Tomoko Ohtsuki, Seppo Honkanen, C. Y. Li, S. Iraj Najafi, Richard C. Powell, Nasser N Peyghambarian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A channel waveguide on an erbium doped phosphate laser glass (Kigre Q89) was fabricated by a dry silver-film ion exchange technique, and its gain properties were studied experimentally. The propagation loss of the fabricated waveguide was 0.6 dB/cm at 1.3 μm. Er3+ concentration of 1 × 1020 ions/cm3 was chosen so that no concentration quenching occurred. This was confirmed by measuring a fluorescence lifetime of 1.54 μm (8.4 ms). Gain of the fabricated waveguide was measured by using a Ti:sapphire laser at a wavelength of 977 nm and a laser diode of 1.530 μm producing pump and signal beams respectively. The signal wavelength used for the experiments was shorter than the emission peak, and the measured gain of the 1.8 cm waveguide was comparable to the total loss. However, the model which adopted experimental conditions showed that lasing is expected at the emission peak with a 3.6 cm long waveguide fabricated by current method. Calculations results showed that the 6.5 dB gain can be realized at 300 mW pump power with a 5.4 cm long waveguide, provided that mode overlap can be increased by 25% and propagation loss can be reduced by 50%. No significant upconversion effect was observed up to 1.1 × 106 W/cm2 pump intensity.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsMario N. Armenise, Ka-Kha Wong
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages95-102
Number of pages8
Volume2401
ISBN (Print)0819417483
StatePublished - 1995
EventFunctional Photonic Integrated Circuits - San Jose, CA, USA
Duration: Feb 9 1995Feb 10 1995

Other

OtherFunctional Photonic Integrated Circuits
CitySan Jose, CA, USA
Period2/9/952/10/95

Fingerprint

phosphates
Phosphates
Waveguides
waveguides
Glass
glass
Pumps
pumps
Glass lasers
Wavelength
propagation
glass lasers
Erbium
Sapphire
wavelengths
erbium
Semiconductor lasers
lasing
Quenching
Ion exchange

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Ohtsuki, T., Honkanen, S., Li, C. Y., Najafi, S. I., Powell, R. C., & Peyghambarian, N. N. (1995). Gain characteristics of a high-concentration Er3+ doped phosphate glass waveguide. In M. N. Armenise, & K-K. Wong (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2401, pp. 95-102). Society of Photo-Optical Instrumentation Engineers.

Gain characteristics of a high-concentration Er3+ doped phosphate glass waveguide. / Ohtsuki, Tomoko; Honkanen, Seppo; Li, C. Y.; Najafi, S. Iraj; Powell, Richard C.; Peyghambarian, Nasser N.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Mario N. Armenise; Ka-Kha Wong. Vol. 2401 Society of Photo-Optical Instrumentation Engineers, 1995. p. 95-102.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ohtsuki, T, Honkanen, S, Li, CY, Najafi, SI, Powell, RC & Peyghambarian, NN 1995, Gain characteristics of a high-concentration Er3+ doped phosphate glass waveguide. in MN Armenise & K-K Wong (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 2401, Society of Photo-Optical Instrumentation Engineers, pp. 95-102, Functional Photonic Integrated Circuits, San Jose, CA, USA, 2/9/95.
Ohtsuki T, Honkanen S, Li CY, Najafi SI, Powell RC, Peyghambarian NN. Gain characteristics of a high-concentration Er3+ doped phosphate glass waveguide. In Armenise MN, Wong K-K, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2401. Society of Photo-Optical Instrumentation Engineers. 1995. p. 95-102
Ohtsuki, Tomoko ; Honkanen, Seppo ; Li, C. Y. ; Najafi, S. Iraj ; Powell, Richard C. ; Peyghambarian, Nasser N. / Gain characteristics of a high-concentration Er3+ doped phosphate glass waveguide. Proceedings of SPIE - The International Society for Optical Engineering. editor / Mario N. Armenise ; Ka-Kha Wong. Vol. 2401 Society of Photo-Optical Instrumentation Engineers, 1995. pp. 95-102
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abstract = "A channel waveguide on an erbium doped phosphate laser glass (Kigre Q89) was fabricated by a dry silver-film ion exchange technique, and its gain properties were studied experimentally. The propagation loss of the fabricated waveguide was 0.6 dB/cm at 1.3 μm. Er3+ concentration of 1 × 1020 ions/cm3 was chosen so that no concentration quenching occurred. This was confirmed by measuring a fluorescence lifetime of 1.54 μm (8.4 ms). Gain of the fabricated waveguide was measured by using a Ti:sapphire laser at a wavelength of 977 nm and a laser diode of 1.530 μm producing pump and signal beams respectively. The signal wavelength used for the experiments was shorter than the emission peak, and the measured gain of the 1.8 cm waveguide was comparable to the total loss. However, the model which adopted experimental conditions showed that lasing is expected at the emission peak with a 3.6 cm long waveguide fabricated by current method. Calculations results showed that the 6.5 dB gain can be realized at 300 mW pump power with a 5.4 cm long waveguide, provided that mode overlap can be increased by 25{\%} and propagation loss can be reduced by 50{\%}. No significant upconversion effect was observed up to 1.1 × 106 W/cm2 pump intensity.",
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AB - A channel waveguide on an erbium doped phosphate laser glass (Kigre Q89) was fabricated by a dry silver-film ion exchange technique, and its gain properties were studied experimentally. The propagation loss of the fabricated waveguide was 0.6 dB/cm at 1.3 μm. Er3+ concentration of 1 × 1020 ions/cm3 was chosen so that no concentration quenching occurred. This was confirmed by measuring a fluorescence lifetime of 1.54 μm (8.4 ms). Gain of the fabricated waveguide was measured by using a Ti:sapphire laser at a wavelength of 977 nm and a laser diode of 1.530 μm producing pump and signal beams respectively. The signal wavelength used for the experiments was shorter than the emission peak, and the measured gain of the 1.8 cm waveguide was comparable to the total loss. However, the model which adopted experimental conditions showed that lasing is expected at the emission peak with a 3.6 cm long waveguide fabricated by current method. Calculations results showed that the 6.5 dB gain can be realized at 300 mW pump power with a 5.4 cm long waveguide, provided that mode overlap can be increased by 25% and propagation loss can be reduced by 50%. No significant upconversion effect was observed up to 1.1 × 106 W/cm2 pump intensity.

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