Tunable Semiconductor Lasers: A Tutorial

Coldren, L.A.; Fish, G.A.; Akulova, Y.A.; Barton, J.S.; Johansson, Leif; Coldren, C.W.

doi:10.1109/jlt.2003.822207

Cited by 300 publications

(101 citation statements)

References 24 publications

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“…This architecture is similar to that developed for electrical tuning of telecom lasers [7], and was demonstrated for the QCL in 2012 [8]. Over an order of magnitude, improvement in tuning was demonstrated compared to traditional single mode DFB QCLs.…”

Section: Introductionmentioning

confidence: 67%

Engineering Multi-Section Quantum Cascade Lasers for Broadband Tuning

Slivken

Razeghi

2016

Photonics

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Abstract:In an effort to overcome current limitations to electrical tuning of quantum cascade lasers, a strategy is proposed which combines heterogeneous quantum cascade laser gain engineering with sampled grating architectures. This approach seeks to not only widen the accessible spectral range for an individual emitter, but also compensate for functional non-uniformity of reflectivity and gain lineshapes. A trial laser with a dual wavelength core is presented which exhibits electroluminescence over a 750 cm´1 range and discrete single mode laser emission over a 700 cm´1 range. Electrical tuning over 180 cm´1 is demonstrated with a simple sampled grating design. A path forward to even wider tuning is also described using more sophisticated gain and grating design principles.

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Section: Introductionmentioning

confidence: 67%

Engineering Multi-Section Quantum Cascade Lasers for Broadband Tuning

Slivken

Razeghi

2016

Photonics

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“…The key component for this approach is the integrated tunable semiconductor laser, on which effort has been invested for their interest in Wavelength Division Multiplexed optical networks [57], which can be implemented either through a Distributed Feedback (DFB) or Distributed Bragg Reflector (DBR) lasers. The advantage of photonic integrations is that it allows a wide range of component arrangements.…”

Section: Integrated Laser Sourcesmentioning

confidence: 99%

Recent Progress and Future Prospect of Photonics-Enabled Terahertz Communications Research

Nagatsuma

Carpintero

2015

IEICE Trans. Electron.

121

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SUMMARYThis paper reviews a recent progress in terahertz wireless communications enabled by photonics technologies. After briefly summarizing transceiver configurations with electronics and photonics technologies, photonics-based approaches to achieving over 100-Gbit/s data rates are discussed. Then, some of our updated results on real-time wireless transmission experiments using discrete components are shown at data rates up to 50 Gbit/s. Finally, integration technologies are described by demonstrating latest advances in integrated optical sources and transmitters.

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“…Some of these approaches are listed in Table 1. It may also be possible to provide color-free operation by using relatively expensive wavelength tunable lasers if prior information of the channel wavelength is known [7].…”

Section: Wdm-pon Based Wavelength Locked F-p Ldmentioning

confidence: 99%

WDM-PON Based on Wavelength Locked Fabry-Perot LDs

Lee¹,

Mun²

2008

Journal of the Optical Society of Korea

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A WDM-PON has been considered as an ultimate solution for access networks. However, there were many technical and practical issues for commercial deployment. These issues were solved with wavelength locked F-P LD and the WDM-PONs employing this optical source were commercialized. These WDM-PON systems have been deployed in Korea, Europe, and US. We reviewed wavelength locking technology and WDM-PON achievements. When we inject spectrum sliced broadband light into an F-P LD, the multimode output is changed to a quasi single mode. Then, we can use the single mode light for WDM signal transmission. The broad spectral gain of the semiconductor gain medium enables a color-free operation of WDM-PON, i.e., an identical ONT can be used for each user. The wavelength locking properties depend on many parameters, especially alignment of injection wavelength to a lasing mode, passband profile of AWG and front facet reflectivity of F-P LD. However, these dependencies can be reduced by proper design of the laser and the injection bandwidth. Thus, WDM-PON systems have been achieved with color-free operation.

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Tunable Semiconductor Lasers: A Tutorial

Cited by 300 publications

References 24 publications

Engineering Multi-Section Quantum Cascade Lasers for Broadband Tuning

Engineering Multi-Section Quantum Cascade Lasers for Broadband Tuning

Recent Progress and Future Prospect of Photonics-Enabled Terahertz Communications Research

WDM-PON Based on Wavelength Locked Fabry-Perot LDs

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