Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 23, Issue 23, Pages 1811-1813Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2011.2169778
Keywords
Flip-flops; optical bistability; optical polarization; vertical-cavity surface-emitting lasers (VCSELs)
Funding
- National Institute of Information and Communications Technology
- Grants-in-Aid for Scientific Research [23560396, 21360034] Funding Source: KAKEN
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Polarization bistable vertical-cavity surface-emitting lasers (VCSELs) with an oxidation confinement structure were fabricated for low power consumption operation. Threshold current of the VCSEL was reduced to 0.22 mA. The VCSEL operated in a single longitudinal and transverse mode and in one of two orthogonal linear polarization modes. All-optical flip-flop operation based on polarization bistability was achieved at a record low bias current of 1.15 mA, which is about one tenth of our previously developed polarization bistable VCSEL without a current confinement structure.
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