Integrated photonics using asymmetric twin-waveguide structures

Forrest, Stephen R.; Gokhale, M.R.; Studenkov, P.; Xia, Fengnian

doi:10.1109/iciprm.2000.850218

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…All the integrated components are defined by postgrowth pattering, eliminating the need for epitaxial regrowth. 4 In addition, ATG technology is robust, low-loss, compatible with existing epitaxial designs, and uses fabrication techniques that are common in InP laser manufacturing. 5 As for our device, SAG technology was employed in the LD/EAM section to exactly control bandgap difference of the LD gain peak and exciton absorption edge while ATG technology was employed in the SSC sections to expand the mode spot size to match the core of a SMF.…”

Section: Introductionmentioning

confidence: 99%

Laser diode monolithically integrated with an electroabsorption modulator and dual-waveguide spot-size converter

Hou

Wang

et al. 2005

Opt. Eng

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A 1.60-m laser diode and electroabsorption modulator monolithically integrated with a dual-waveguide spot-size converter output for low-loss coupling to cleaved single-mode optical fiber is demonstrated. The devices emit in a single transverse and quasi-single longitudinal mode with a side mode suppression ratio of 25.6 dB. These devices exhibit a 3-dB modulation bandwidth of 16.0 GHz, and modulator extinction ratios of 16.2 dB dc. The beam divergence angle is about 7.3ϫ10.6 deg, resulting in 3.0-dB coupling loss with cleaved single-mode optical fiber.

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Section: Introductionmentioning

confidence: 99%

Laser diode monolithically integrated with an electroabsorption modulator and dual-waveguide spot-size converter

Hou

Wang

et al. 2005

Opt. Eng

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“…However, it is difficult to control the regrowth of large-step butt-joints and to accurately control the etch depth required for the low-contrast waveguides. Integration by symmetric twin-waveguide structure [4] does not require a regrowth, but introduces possible optical absorption in the taper region. Also, the effective index of both waveguides should match accurately to limit the taper lengths.…”

mentioning

confidence: 99%

Optical-CDMA in InP

Broeke

Cao

Chen

et al. 2007

IEEE J. Select. Topics Quantum Electron.

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This paper describes the InP platforms for photonic integration and the development on these platforms of an optical code division multiple access (O-CDMA) system for local area networks. We demonstrate three building blocks of this system: an optical pulse source, an encoder/decoder pair, and a threshold detector. The optical pulse source consists of an integrated colliding pulse-mode laser with nearly transform-limited 10 Gb/s pulses and optical injection locking to an external clock for synchronization. The encoder/decoder pair is based on arrayed waveguide gratings. Bit-error-rate measurements involving six users at 10 Gb/s showed error-free transmission, while O-CDMA codes were calibrated using frequency resolved optical gating. For threshold detection after the decoder, we compared two Mach-Zehnder interferometer (MZI)-based optical thresholding schemes and present results on a new type of electroabsorber-based MZI.

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“…This makes it possible to use polarization as a useful parameter in photonic integrated circuits as well. Here an example will be given, regarding the important issue of combining active and passive functions on one InP-chip [1][2][3]. First short descriptions of the polarization manipulating devices are given.…”

Section: Introductionmentioning

confidence: 99%