Polarization Bistable Characteristics of 1.55 µm Vertical-Cavity Surface-Emitting Lasers

Katayama, T.; Sato, Yuuki; Mori, Toshihiro; Kawaguchi, Hitoshi

doi:10.1143/jjap.46.l1231

Cited by 17 publications

(4 citation statements)

References 11 publications

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“…The X-polarization mode output was kept and its output power was increased as the current increased above that. Similar behaviors were reported by other groups in 850 nm and 1550 nm bistable VCSELs [3,4]. It was observed that this polarization bistability with the increasing driving current varied from chip to chip dependent on the VCSEL chip's condition in terms of uniformity and circular symmetricity during the fabrication process even for the single-mode VCSEL [5].…”

Section: Experiments and Resultssupporting

confidence: 81%

Low jittered optical pulse generation from a gain-switched single-mode VCSEL with an external laser beam injection

Jung

Lee

Kim

et al. 2010

Digest of the 9th International Conference on Optical Internet (COIN 2010)

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We report experimental results on timing-jitter suppressed optical short pulse generation from a gain-switched single-mode vertical-cavity surface-emitting laser (VCSEL) at 1.55 μm wavelength with an external laser beam injection. The low timing-jittered optical short pulses are very useful for high-speed optical time-division-multiplexed (TDM) communications and signal processing. The obtained timing jitter and pulse duration from the VCSEL were less than 1 ps and 65 ps, respectively, at a pulse repetition rate of 1.6 GHz.

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Section: Experiments and Resultssupporting

confidence: 81%

Low jittered optical pulse generation from a gain-switched single-mode VCSEL with an external laser beam injection

Jung

Lee

Kim

et al. 2010

Digest of the 9th International Conference on Optical Internet (COIN 2010)

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“…2−bit optical buffering and a shift register function were also demonstrated, show− ing the technological feasibility of a multi−bit optical buffer memory. Although not described in this paper, polarization bistability has also been demonstrated in 1.55−μm VCSELs with a square mesa structure, which is the most suitable wavelength range for optical fiber communication [6,21]. A 4−bit optical buffer memory consisting of two sets of opti− cal buffer memories with shift register function has been demonstrated [22].…”

Section: Discussionmentioning

confidence: 86%

Polarization-bistable vertical-cavity surface-emitting lasers: application for optical bit memory

Kawaguchi

2009

Opto-Electronics Review

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We summarize recent results on polarization-bistable vertical-cavity surface-emitting lasers (VCSELs) and their application to optical buffer memory. All-optical flip-flop operation with very low switching energies and high repetition rates is achieved. An optical buffer memory consisting of a two-dimensional array of polarization-bistable VCSELs, in which the bit state of the optical signal, “0” or “1”, is stored as a lasing linear polarization state of 0 or 90°. Input data stored as the polarization states of the first VCSEL are transferred to the polarization states of the second VCSEL. In our experiments with 980 nm polarization-bistable VCSELs, 10 Gbit/s optical buffering, 2-bit optical buffering, and a shift register function have been successfully demonstrated.

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“…1. The 1.55-µm VCSEL used in our experiments had a square mesa structure ensuring oscillation in one of the two linearly polarized modes along the edges of the mesa (0°or 90°) [5]. These two orthogonal modes had a small wavelength difference, about 0.072 nm (9.0 GHz), between them.…”

Section: Principle and Experimental Setupmentioning

confidence: 99%

High-Frequency Self-Modulation in Short-External-Cavity VCSEL With Concave Mirror

Liu

Katayama

Kawaguchi

2015

IEEE Photon. Technol. Lett.

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We observed high-frequency modulation of optical output from a short-external-cavity vertical-cavity surfaceemitting laser with a new configuration. The length L of the external cavity was reduced using a short-radius concave mirror as one end of the cavity and using a thin-film quarter-wave plate in the cavity. With a concave mirror having a radius of 20 mm, a pulse sequence based on the well-known polarization self-modulation and having a repetition rate of ∼3.5 GHz was generated. When the radius was shortened to 5.08 mm, a sinusoidal modulation with a frequency of ∼12.6 GHz was generated. With changing drive current, stable modulation sequences with periodic changes in the modulation frequency and polarization direction were observed at discrete current values. We found that two external-cavity modes, which were separated by nearly c/4L, selectively oscillated and the beat of them resulted in modulation of the output.

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Polarization Bistable Characteristics of 1.55 µm Vertical-Cavity Surface-Emitting Lasers

Cited by 17 publications

References 11 publications

Low jittered optical pulse generation from a gain-switched single-mode VCSEL with an external laser beam injection

Low jittered optical pulse generation from a gain-switched single-mode VCSEL with an external laser beam injection

Polarization-bistable vertical-cavity surface-emitting lasers: application for optical bit memory

High-Frequency Self-Modulation in Short-External-Cavity VCSEL With Concave Mirror

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