Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Heterogeneously integrated microdisk lasers for optical interconnects and optical logic

[+] Author Affiliations
Pauline Mechet, Liu Liu, Rajesh Kumar, Koen Huybrechts, Thijs Spuesens, Günther Roelkens, Dries Van Thourhout, Roel Baets, Geert Morthier

Univ. Gent (Belgium)

Erik-Jan Geluk, Tjibbe de Vries

Technische Univ. Eindhoven (Netherlands)

Philippe Regreny

INL-UMR5270, CNRS, Ecole Centrale de Lyon (France)

Proc. SPIE 7913, Laser Resonators and Beam Control XIII, 791319 (February 18, 2011); doi:10.1117/12.885749
Text Size: A A A
From Conference Volume 7913

  • Laser Resonators and Beam Control XIII
  • Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko
  • San Francisco, California, USA | January 22, 2011

abstract

Optical interconnect and optical packet switching systems could take advantage of small footprint, low power lasers and optical logic elements. Microdisk lasers, with a diameter below 10μm and fabricated in InP membranes with a high index contrast, offer this possibility at the telecom wavelengths. The lasers are fabricated using heterogeneous integration of InP membranes on silicon-on-insulator (SOI) passive waveguide circuits, which allows to combine the active elements with compact, high-index contrast passive elements. The lasing mode in such microdisk lasers is a whispering gallery mode, which can be either in the clockwise (CW) or counter clockwise direction (CCW) or in both. The coupling to the SOI wire waveguides is through evanescent coupling. Predefined, unidirectional operation can be achieved by terminating the SOI wires at one end with Bragg gratings. For all-optical flip-flops, the laser operation must be switchable between CW and CCW, using short optical pulses. Unidirectional operation in either direction is only possible if the coupling between CW and CCW direction is very small, requiring small sidewall surface roughness, and if the gain suppression is sufficiently large, requiring large internal power levels. All-optical flip-flops based on microdisk lasers with diameter of 7.5μm have been demonstrated. They operate with a CW power consumption of a few mW and switch in 60ps with switching energies as low as 1.8fJ. Operation as all-optical gate has also been demonstrated. The surface roughness is limited through optimized etching of the disks and the large internal power is obtained through good heat sink.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Pauline Mechet ; Liu Liu ; Rajesh Kumar ; Koen Huybrechts ; Thijs Spuesens, et al.
"Heterogeneously integrated microdisk lasers for optical interconnects and optical logic", Proc. SPIE 7913, Laser Resonators and Beam Control XIII, 791319 (February 18, 2011); doi:10.1117/12.885749; http://dx.doi.org/10.1117/12.885749


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.