Modal characteristics and bistability in twin microdisk photonic molecule lasers

Ishii, Satoru; Nakagawa, A.; Baba, Toshihiko

doi:10.1109/jstqe.2005.862951

Cited by 51 publications

(37 citation statements)

References 25 publications

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“…Furthermore, unlike their grating counterparts, SRLs can operate in a directional bistable regime, where they emit in one of two possible counterpropagating directions [1]. Bistability was also observed in case of coupled micro-disk systems between the bonding and anti-bonding states of the resonator [2]. Directional bistability makes SRLs uniquely suited to the development of all-optical flip-flops [3], [4], memory elements [1], [5], and all-optical processing applications such as digital logic [6], [7], wavelength-conversion [8], [9] and regeneration [10].…”

Section: Introductionmentioning

confidence: 98%

Bistable Micro-Ring Lasers With Compact Footprint and High Output Efficiency

Mezősi

Strain

Furst

et al. 2012

IEEE J. Quantum Electron.

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Micro-ring lasers, with a minimum bend radius of 10 µm, are presented that exhibit directional bistability and output powers up to 1.5 mW. In order to achieve devices with low threshold currents, mW output powers and directional bistability, the confilicting design constraints on the device are highlighted. Optimized adiabatic waveguide bends, bi-level evanescent couplers, and deeply etched ridge waveguide designs are presented in order to meet the stringent device design requirements. The optimized micro-ring laser devices exhibit directional extinction ratios of 25 dB and side-mode suppression ratios > 25 dB.

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Section: Introductionmentioning

confidence: 98%

Bistable Micro-Ring Lasers With Compact Footprint and High Output Efficiency

Mezősi

Strain

Furst

et al. 2012

IEEE J. Quantum Electron.

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“…Based on mode competition between clockwise and anti-clockwise traveling Manuscript modes, a fast low-power flip-flop memory is demonstrated for hybrid III-V/Si microdisk lasers [10], [11]. The optical bistability is also observed in coupled microdisk lasers as a result of the mode competition between the bonding and antibonding states [12], [13]. In addition, optical bistability is reported for an equilateral-triangle-resonator microlaser with symmetric and anti-symmetric mode competition [14].…”

Section: Introductionmentioning

confidence: 99%

Mode Characteristics and Optical Bistability for AlGaInAs/InP Microring Lasers

Yang

Zou

et al. 2014

IEEE Photon. Technol. Lett.

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Mode characteristics and optical bistability are investigated for an AlGaInAs/InP microring laser, with an outer radius of 10 µm and a ring width of 3 µm, connected with a 2-µm-wide radial output waveguide. A clockwise bistable hysteresis loop is observed with the continuous injection current from 20 to 28 mA at 289 K, measured through a single-mode optical fiber coupled to the output waveguide in the center position. The lasing spectra with main lasing wavelength difference of 0.022 nm are observed for the upper and lower states of the hysteresis. Furthermore, an anticlockwise bistable hysteresis loop is observed as the fiber is moved away from the center of the output waveguide to the secondary peak position of the coupled power. Comparing the experimental and simulation results, we attribute the bistability to the mode competitions between the near-degenerate symmetric and antisymmetric modes with different far-field emission characteristics.

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“…The most essential component in the optical communication, information storage [1] [2], and optical interconnect [3] is lasers. There is a high demand for lasers with small physical device volume in the digital photonic circuits [4].…”

Section: Introductionmentioning

confidence: 99%