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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 7 — Apr. 7, 2014
  • pp: 7678–7685

High power and widely tunable Si hybrid external-cavity laser for power efficient Si photonics WDM links

Jin Hyoung Lee, Ivan Shubin, Jin Yao, Justin Bickford, Ying Luo, Shiyun Lin, Stevan S. Djordjevic, Hiren D. Thacker, John E. Cunningham, Kannan Raj, Xuezhe Zheng, and Ashok V. Krishnamoorthy  »View Author Affiliations


Optics Express, Vol. 22, Issue 7, pp. 7678-7685 (2014)
http://dx.doi.org/10.1364/OE.22.007678


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Abstract

A highly efficient silicon (Si) hybrid external cavity laser with a wavelength tunable ring reflector is fabricated on a complementary metal-oxide semiconductor (CMOS)-compatible Si-on-insulator (SOI) platform and experimental results with high output power are demonstrated. A III-V semiconductor gain chip is edge-coupled into a SOI cavity chip through a SiNx spot size converter and Si grating couplers are incorporated to enable wafer-scale characterization. The laser output power reaches 20 mW and the highest wall-plug efficiency of 7.8% is measured at 17.3 mW in un-cooled condition. The laser wavelength tuning ranges are 8 nm for the single ring reflector cavity and 35 nm for the vernier ring reflector cavity, respectively. The Si hybrid laser is a promising light source for energy-efficient Si CMOS photonic links.

© 2014 Optical Society of America

OCIS Codes
(140.3600) Lasers and laser optics : Lasers, tunable
(140.5960) Lasers and laser optics : Semiconductor lasers
(200.4650) Optics in computing : Optical interconnects
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 3, 2014
Revised Manuscript: March 13, 2014
Manuscript Accepted: March 14, 2014
Published: March 26, 2014

Citation
Jin Hyoung Lee, Ivan Shubin, Jin Yao, Justin Bickford, Ying Luo, Shiyun Lin, Stevan S. Djordjevic, Hiren D. Thacker, John E. Cunningham, Kannan Raj, Xuezhe Zheng, and Ashok V. Krishnamoorthy, "High power and widely tunable Si hybrid external-cavity laser for power efficient Si photonics WDM links," Opt. Express 22, 7678-7685 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-7-7678


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References

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