Full C-band external cavity wavelength tunable laser using a liquid-Crystal-based tunable mirror

Merlier, J. De; Mizutani, K.; Sudo, S.; Naniwae, K.; Furushima, Y.; Sato, S.; Satô, Kenji; Kudo, K.

doi:10.1109/lpt.2004.842381

Cited by 45 publications

(17 citation statements)

References 4 publications

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“…7 [17,43]. The SOA chip contained a gain and a phase section, the mirror was a liquid crystal-based tunable filter.…”

Section: Electronically Tunable Eclsmentioning

confidence: 99%

External cavity wavelength tunable semiconductor lasers - a review

Mroziewicz

2008

Opto-Electronics Review

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External cavity tunable lasers have been around for many years and now constitute a large group of semiconductor lasers featuring very unique properties. The present review has been restricted to the systems based on the edge emitting diode lasers set-up in a hybrid configuration. The aim was to make the paper as concise as possible without sacrificing, however, most important details. We start with short description of the fundamentals essential for operation of the external cavity lasers to set the stage for explanation of their properties and some typical designs. Then, semiconductor optical amplifiers used in the external cavity lasers are highlighted more in detail as well as diffraction gratings and other types of wavelength-selective reflectors used to provide optical feedback in these lasers. This is followed by a survey of designs and properties of various external cavity lasers both with mobile bulk gratings and with fixed wavelength selective mirrors. The paper closes with description of some recent developments in the field to show prospects for further progress directed towards miniaturization and integration of the external cavity laser components used so far to set-up hybrid systems.

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“…7 [17,43]. The SOA chip contained a gain and a phase section, the mirror was a liquid crystal-based tunable filter.…”

Section: Electronically Tunable Eclsmentioning

confidence: 99%

External cavity wavelength tunable semiconductor lasers - a review

Mroziewicz

2008

Opto-Electronics Review

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“…So far, a number of wavelength-tunable lasers have been developed such as external cavity lasers [1], sampledgrating distributed Bragg reflector (SG-DBR) lasers [2], super-structure grating distributed Bragg reflector (SSG-DBR) lasers [3], digital supermode distributed.…”

Section: Introductionmentioning

confidence: 99%

Nine-Channel Wavelength Tunable Single Mode Laser Array Based on Slots

Guo

Nawrocka

et al. 2013

Cleo: 2013

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A 9-channel wavelength tunable single-mode laser array based on slots is presented. The fabricated laser array demonstrated a threshold current in a range of 19~21 mA with the SOA unbiased at 20°C under continuous wave condition. Stable single mode performances have been observed with side-mode suppression-ratio (SMSR) > 50 dB. The output power higher than 37 mW was obtained at the SOA injected current of 70 mA for all the 9 channels within the laser array. A wavelength quasicontinuous tuning range of about 27 nm has been achieved for the laser array with the temperature variations from 10°C to 45°C. This array platform is of a single growth and monolithically integrable. It can be easily fabricated by standard photolithography. In addition, it potentially removes the yield problem due to the uncertainty of the facet cleaving.

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“…Wacogne et al [7] developed a tunable ECL with two liquid crystal cells and a birefringent plate and Chang et al [8] presented a tunable ECL based on a liquid crystal sub-wavelength resonant grating filter, but they exhibit a narrow tuning range of about 7 nm. Although tunable ECLs using LC elements with wide tuning range have been reported recently [9,10], the lasing wavelengths do not match to ITU grids, which is the requirement of a DWDM application.…”

Section: Introductionmentioning

confidence: 99%

Innovative design of a tunable laser using liquid crystal tuning elements

Wang

Seah

Murukeshan

et al. 2007

Journal of Modern Optics

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An innovative non-mechanical and low power consumption tunable external cavity laser (ECL) using liquid crystal tuning elements is proposed. This contains a gain chip, a collimating lens, tuning elements and a partial-reflection mirror. The proposed tunable ECL can achieve both coarse tuning and fine tuning, and it is designed to lase at wavelength matching the International Telecommunication Union (ITU) channels, which is one of the important requirements in optical communication. The tuning elements include an ITU etalon, a liquid crystal Fabry-Pe´rot interferometer (LC-FPI) and a fine tuner. Only two parameters are required to tune the wavelength over the whole C-band, namely the voltage over the LC-FPI and the fine tuner. This high reliability cost-effective design proposes a theoretical tuning range of about 80 nm. The LC tuning elements including LC-FPI and fine tuner has been fabricated and tested.

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Full C-band external cavity wavelength tunable laser using a liquid-Crystal-based tunable mirror

Cited by 45 publications

References 4 publications

External cavity wavelength tunable semiconductor lasers - a review

External cavity wavelength tunable semiconductor lasers - a review

Nine-Channel Wavelength Tunable Single Mode Laser Array Based on Slots

Innovative design of a tunable laser using liquid crystal tuning elements

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