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Aging-induced wavelength shifts in 1.5-μm DFB lasers
1994 Edition, Volume 6, July 1, 1994 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We report measured wavelength shifts of over one hundred 1.5-μm DFB lasers aged under three different conditions far a period corresponding to the system's lifetime (/spl sim/25 years). The results show that the lasers aged at lower...

Facet-free surface-emitting 1.3-μm DFB laser
2015 Edition, September 1, 2015 - Viajes el Corte Ingles, VECISA

We proposed a perfectly facet-free surface-emitting 1.3-μm DFB laser toward cost-effective light source, and confirmed the same performances as the usual DFB lasers and an on-wafer measurement.

Monolithic narrow linewidth laterally-coupled 1.55 μm DFB laser and optical amplifier
2013 Edition, June 1, 2013 - Optical Society (The) (OSA)

We present a laterally-coupled 1.55 μm AlGaInAs/InP DFB laser monolithically integrated with an optical amplifier, providing an output power of 210 mW with single mode operation exhibiting a record low linewidth of 64 kHz.

1.55 μm DFB laser monolithically integrated with 3-stage power amplifier array
2015 Edition, October 1, 2015 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A 1.56 μm distributed feedback laser monolithically integrated with three stages of multi-mode interference couplers and semiconductor optical amplifiers was fabricated. The output exhibited a clear coherent interference far field pattern.

2.5-Gb/s transmission characteristics of 1.3-μm DFB lasers with external optical feedback
2002 Edition, Volume 14, January 1, 2002 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

All-optical networks will require low-cost laser sources. In order to reduce the packaging cost and to design a module without optical isolator, the 2.5-Gb/s 300-ps/nm transmission characteristics of 1.3-μm distributed-feedback lasers is analyzed in the presence...

Optimum linear pulse compression of a gain-switched 1.5 μm DFB laser
1994 Edition, Volume 6, January 1, 1994 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We report on pulse compression measurements of a 1.5 μm gain-switched strained multi-quantum well distributed feedback semiconductor laser. Experiments with eight normal dispersion fiber lengths show that the optimum compression may be achieved at a dispersion value about half of the...

Integrated 1.3-μm DFB laser electroabsorption modulator based on identical MQW double-stack active layer with 25-GHz modulation performance
2003 Edition, Volume 15, August 1, 2003 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

1.31-μm electroabsorption modulators monolithically integrated with a DFB laser diode have been realized using an identical InGaAsP-InP multiple quantum-well-layer structure composed of two different QW types. Low laser threshold currents <13 mA and high 3-dBe cutoff...

1.55-μm DFB lasers utilizing an automatically buried absorptive InAsP layer having a high single-mode yield
2004 Edition, Volume 16, June 1, 2004 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We describe 1.55-μm distributed feedback laser diodes (DFB LDs) having a single-mode (SM) yield as high as 80% and 93% for as-cleaved and antireflection/high reflection (AR/HR=3%/95%) coated devices, respectively. The high SM yield was achieved by introducing an automatically...

Two-step laterally tapered spot-size converter 1.55-μm DFB laser diode having a high slope efficiency
2006 Edition, Volume 18, October 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We demonstrate a two-step lateral tapered 1.55-mum spot-size converter distributed feedback laser diode (SSC DFB LD) having slope efficiencies as high as 0.457 and 0.319 mW/mA measured at 25 degC and 85 degC, respectively. The SSC DFB LD fabricated by using a nonselective...

Coherence-collapse threshold of 1.3-μm semiconductor DFB lasers
2003 Edition, Volume 15, January 1, 2003 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The onset of the coherence-collapse threshold is theoretically and experimentally studied for monomode 1.3-μm antireflection/high reflection distributed-feedback lasers taking into account facet phase effects. The variation of the coherence collapse from chip to chip due to the facet...

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