Laser action in ion-exchanged waveguides fabricated on Er-Yb-doped phosphate glasses using planar technology

Gino Sorbello; Stefano Taccheo; Roberta Ramponi; Vittorio Foglietti; Shibin Jiang; Nasser Peyghambarian; Paolo Laporta

doi:10.1117/12.461652

5 April 2002 Laser action in ion-exchanged waveguides fabricated on Er-Yb-doped phosphate glasses using planar technology

Gino Sorbello, Stefano Taccheo, Roberta Ramponi, Vittorio Foglietti, Shibin Jiang, Nasser Peyghambarian, Paolo Laporta

Author Affiliations +

Proceedings Volume 4645, Rare-Earth-Doped Materials and Devices VI; (2002) https://doi.org/10.1117/12.461652
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

Abstract

Waveguide laser arrays operating at 1.5 micrometers have been fabricated on Er:Yb-doped glass substrates by a two-step silver-sodium ion-exchange process based on thermal diffusion followed by a field-assisted burial step. The fabrication parameters have been optimized to achieve low propagation losses and good mode matching between waveguide channels and standard single-mode output fibers. Each laser cavity is formed by two Bragg gratings butt-coupled to the two ends of the channel waveguide. Fiber-coupled output power in excess of 10 mW is readily available from a single channel, when pumped from both sides by two 980-nm laser diodes providing a maximum power of ~300 mW. Single-longitudinal mode operation with output power of the order of 1 mW has been achieved using narrow reflectivity band (<30 GHz) Bragg gratings with different laser configurations. The laser operating wavelength can be selected across the whole C-band of optical communications (1530-1565 nm) by changing the Bragg grating peak reflectivity wavelength. A relative intensity noise lower than -150 dB/Hz has been measured for frequencies larger than 2 MHz. Stability of single-frequency operation, low intensity noise and flexibility in the choice of the operating wavelength make this laser array particularly attractive for wavelength division multiplexing optical transmissions.

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Gino Sorbello, Stefano Taccheo, Roberta Ramponi, Vittorio Foglietti, Shibin Jiang, Nasser Peyghambarian, and Paolo Laporta "Laser action in ion-exchanged waveguides fabricated on Er-Yb-doped phosphate glasses using planar technology", Proc. SPIE 4645, Rare-Earth-Doped Materials and Devices VI, (5 April 2002); https://doi.org/10.1117/12.461652

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