Narrowing Linewidth of Wavelength-Swept Active Mode Locking Laser Based on Cross Gain Modulation

Park, Se Jin; Kim, Gyeong Hun; Lee, Hwi Don; Kim, Chang-Seok; Jo, Minsik

doi:10.3390/app9194029

Cited by 4 publications

(3 citation statements)

References 26 publications

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“…The tapers on the two output end of the MMI coupler are spaced apart by 3.14 µm. With FSRs of 9.2 (mrr1) and 8.7 nm (mrr2), the FSR of the Vernier filter is 140 nm, as determined by (2).…”

Section: Wavelength-selective Vernier Cavitymentioning

confidence: 99%

“…The crux in the realization of such lasers, depends on the integration of a wavelength-selective mechanism and an optical gain-section. While distributed feedback (DFB) laser arrays and microelectromechanical systems (MEMS) vertical cavity surface emitting lasers (VCSEL) has been shown to demonstrate wavelength-tuning functionality, there may be limitations in terms of DFB array coupler loss [1] and mechanical instability [2] respectively. Littman/Littrow-This paragraph of the first footnote will contain the date on which you submitted your paper for review.…”

Section: Introductionmentioning

confidence: 99%

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Compact, Hybrid III-V/Silicon Vernier Laser Diode Operating From 1955–1992 nm

Sia

Wang

et al. 2021

IEEE Photonics J.

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The 2 µm waveband is capable of enabling pervasive applications. The demonstration of the hollow-core photonic bandgap fiber and the thulium-doped fiber amplifier has highlighted the fiber propagation and amplification aspects of fiber communications, indicating its potential as an adjunct to present communication infrastructure at the O/C bands. The above is especially imperative given the current concerns with regards to the upper bandwidth limit of the single-mode fiber. Furthermore, the waveband could facilitate many more applications such as LIDAR and free-space communication. However, water absorption (OH -) is high at most of the 2 μm waveband and this will impact the optical insertion loss of applications implemented in the wavelength region. The relative low water absorption region of the waveband falls within 1950 -2000 nm. As such, the development of a hybrid/heterogeneous III-V/silicon laser source that operates within the region is important for 2 µm silicon photonics. In this work, we demonstrate a Ⅲ-Ⅴ/Si hybrid tunable laser operating from 1955 -1992 nm for the first time. Room temperature continuous wave operation is achieved with a maximum laser output power of 8.1 mW. This wavelengthtunable laser operates specifically within the low water absorption window, indicating good wavelength suitability for applications at the 2 μm waveband.

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“…The tapers on the two output end of the MMI coupler are spaced apart by 3.14 µm. With FSRs of 9.2 (mrr1) and 8.7 nm (mrr2), the FSR of the Vernier filter is 140 nm, as determined by (2).…”

Section: Wavelength-selective Vernier Cavitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact, Hybrid III-V/Silicon Vernier Laser Diode Operating From 1955–1992 nm

Sia

Wang

et al. 2021

IEEE Photonics J.

View full text Add to dashboard Cite

show abstract

“…The crux in the realization of such lasers, depends on the integration of a wavelength-selective mechanism and an optical gain-section (section 2.4). While distributed feedback laser arrays and MEMS-enabled VCSELs has been shown to demonstrate wavelength-tuning functionality, there may be limitations in terms of DFB array coupler loss [234] and mechanical instability [235] respectively. Littman/Littrow-configured external cavity lasers (ECL) have also indicated wide spectral operating range, but however, the application-space of these class of lasers are limited typically by their bulk [236], as well as higher vulnerability to environmental vibrations [237].…”

Section: Introductionmentioning

confidence: 99%