Optical set-reset latch

Skogen, Erik J.

Optical set-reset latch

Patent · Tue Jan 29 04:00:00 EST 2013

OSTI ID:1082655

Skogen, Erik J.

An optical set-reset (SR) latch is formed from a first electroabsorption modulator (EAM), a second EAM and a waveguide photodetector (PD) which are arranged in an optical and electrical feedback loop which controls the transmission of light through the first EAM to latch the first EAM in a light-transmissive state in response to a Set light input. A second waveguide PD controls the transmission of light through the second EAM and is used to switch the first EAM to a light-absorptive state in response to a Reset light input provided to the second waveguide PD. The optical SR latch, which may be formed on a III-V compound semiconductor substrate (e.g. an InP or a GaAs substrate) as a photonic integrated circuit (PIC), stores a bit of optical information and has an optical output for the logic state of that bit of information.

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC04-94AL85000

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: 8,363,990

Application Number:: 13/071,095

OSTI ID:: 1082655

Country of Publication:: United States

Language:: English

References (7)

40-Gb/s Widely Tunable Transceivers Raring, James W.; Coldren, Larry A. IEEE Journal of Selected Topics in Quantum Electronics, Vol. 13, Issue 1, p. 3-14 https://doi.org/10.1109/JSTQE.2006.885329	journal	January 2007
Optical Logic Gates Using Interconnected Photodiodes and Electro-Absorption Modulators Skogen, Erik J.; Vawter, Allen; Tauke-Pedretti, Anna Integrated Photonics Research, Silicon and Nanophotonics and Photonics in Switching, Article No. PWA6 https://doi.org/10.1364/PS.2010.PWA6	conference	January 2010
500 Gbit∕s optical gate monolithically integrating photodiode and electroabsorption modulator Kodama, S.; Yoshimatsu, T.; Ito, H. Electronics Letters, Vol. 40, Issue 9 https://doi.org/10.1049/el:20040391	journal	January 2004
2.3 picoseconds optical gate monolithically integrating photodiode and electroabsorption modulator Kodama, S.; Ito, T.; Watanabe, N. Electronics Letters, Vol. 37, Issue 19 https://doi.org/10.1049/el:20010780	journal	January 2001
100-gb/s error-free wavelength conversion with a monolithic optical gate integrating a photodiode and electroabsorption modulator Yoshimatsu, T.; Kodama, S.; Yoshino, K. IEEE Photonics Technology Letters, Vol. 17, Issue 11 https://doi.org/10.1109/LPT.2005.857986	journal	November 2005
Design and Demonstration of Novel QW Intermixing Scheme for the Integration of UTC-Type Photodiodes With QW-Based Components Raring, J. W.; Skogen, E. J.; Wang, C. S. IEEE Journal of Quantum Electronics, Vol. 42, Issue 2 https://doi.org/10.1109/JQE.2005.862030	journal	February 2006
Monolithically integrated active components: a quantum-well intermixing approach Skogen, E. J.; Raring, J. W.; Morrison, G. B. IEEE Journal of Selected Topics in Quantum Electronics, Vol. 11, Issue 2, p. 343-355 https://doi.org/10.1109/JSTQE.2005.846525	journal	March 2005

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