Fabrication-tolerant 1310 nm laterally-coupled distributed feedback lasers with high side mode suppression ratios

Millett, R.; Dridi, Kais; Benhsaien, Abdessamad; Schriemer, Henry; Hinzer, Karin; Hall, Trevor J.; Vainos, Nikolaos; Couris, Stelios; Paspalakis, Emmanuel; Koutselas, Ioannis; Pissadakis, Stavros

doi:10.1063/1.3521380

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…There are several reports on DFB lasers with side-coupled gratings, where the grating is placed along a ridge waveguide (RW) [3], [4]. These gratings, however, function only for fundamental spatial mode lasers with a narrow RW due to a weak overlap of the optical mode with the grating placed outside the ridge.…”

Section: Introductionmentioning

confidence: 98%

High-Power Distributed Feedback Lasers With Surface Gratings

Fricke

Wenzel

Bugge

et al. 2012

IEEE Photon. Technol. Lett.

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We present the results for high-power broad-area distributed feedback lasers with surface gratings of 80th, 135th, and 270th Bragg orders. A maximum output power of 11 W for a laser with 80th order grating, emitting around 976 nm with a spectral width <1 nm has been achieved. Similar narrow linewidth operation occurs for devices with 135th Bragg order from 7-to 11-W output power. The technological approach to fabricating these devices based on stepper lithography and reactive ion etching is described.

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Section: Introductionmentioning

confidence: 98%

High-Power Distributed Feedback Lasers With Surface Gratings

Fricke

Wenzel

Bugge

et al. 2012

IEEE Photon. Technol. Lett.

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“…It has been demonstrated also that such higher-order gratings can provide improved longitudinal mode discrimination, minimizing radiation loss through gratings' parameter optimization [9]. Based on this theory, we successfully demonstrated a single mode 1310 nm LC-DFB laser [10]. The model has been then upgraded to accommodate the 1550 nm wavelength.…”

Section: Introductionmentioning

confidence: 93%

Narrow Linewidth 1550 nm Corrugated Ridge Waveguide DFB Lasers

Dridi

Benhsaien

Zhang

et al. 2014

IEEE Photon. Technol. Lett.

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We report on the design and characterization of InP-based multiple quantum well corrugated ridge waveguide distributed feedback diode lasers operating at 1550 nm. Thirdorder gratings have been etched along the sidewalls of the ridge waveguide using the standard I-line stepper lithography technique with an inductively coupled reactive ion etching process. An as-cleaved 1500-μm-long laser diode shows stable continuous wave single-mode operation at 1550 nm with high side-mode suppression ratios (>50 dB), a temperature-dependent wavelength shift dλ/dT ∼0.095 nm/°C, and output powers ≥7 mW at 25°C. Linewidth determination has been carried using the delayed self-heterodyne interferometric technique. Narrow linewidths (≤250 kHz) have been observed for a wide range of current injection, with a minimum of 184 kHz at 300 mA.Index Terms-Distributed feedback (DFB) lasers, delayed selfheterodyne interferometry, InP/InGaAsP multiple quantum well (MQW), Lorentzian lineshape, stepper lithography, Voigt profile.

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“…Because the grating section in DFB-lasers must be pumped electrically, the use of first-to third-order deeply etched gratings is hard to realize. DFB-lasers made without grating overgrowth are, therefore, often based on side coupled gratings [9][10][11][12][13][14]. However, side coupled gratings have two disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Y-branch coupled DFB-lasers based on high-order Bragg gratings for wavelength stabilization

Fricke¹,

Klehr²,

Brox³

et al. 2013

Semicond. Sci. Technol.

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Y-branch coupled distributed-feedback lasers with 40th-and 80th-order surface Bragg gratings have been fabricated using a process based on I-line wafer stepper lithography. The devices allow dual wavelength lasing at around 975 nm. Wavelength spacing of 0.5 and 4 nm have been achieved by using grating period differences of 2.9 and 47.6 nm for the 40th-and 80th-order gratings, respectively. The manufactured devices with internal wavelength stabilization work as master oscillator power amplifiers with two separate and one common amplifier sections. We present optical output characteristics of the devices under continuous wave operation.

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Fabrication-tolerant 1310 nm laterally-coupled distributed feedback lasers with high side mode suppression ratios

Cited by 4 publications

References 10 publications

High-Power Distributed Feedback Lasers With Surface Gratings

High-Power Distributed Feedback Lasers With Surface Gratings

Narrow Linewidth 1550 nm Corrugated Ridge Waveguide DFB Lasers

Y-branch coupled DFB-lasers based on high-order Bragg gratings for wavelength stabilization

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