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Far-field, linewidth and thermal characteristics of a high-speed 1550-nm MEMS tunable VCSEL

Paul, Sujoy and Haidar, Mohammad Tanvir and Cesar, Julijan and Malekizandi, Mohammadreza and Kögel, Benjamin and Neumeyr, Christian and Ortsiefer, Markus and Küppers, Franko (2016):
Far-field, linewidth and thermal characteristics of a high-speed 1550-nm MEMS tunable VCSEL.
In: Opt. Express, OSA, pp. 13142-13156, 24, (12), [Online-Edition: http://dx.doi.org/10.1364/OE.24.013142],
[Article]

Abstract

We report an electrically pumped 1550 nm MEMS tunable VCSEL with a continuous tuning of 101 nm at 22 °C. The top MEMS-DBR with built-in stress gradient within the dielectric layers is deposited in a low-temperature PECVD chamber on an InP-based half-VCSEL, structured by surface-micromachining and electrothermally actuated for continuous wavelength tuning. With 2.6 mA threshold current, the laser shows maximum CW output power of 3.2 mW at 1560 nm. The MEMS-VCSEL operates in single-mode with SMSR > 39 dB across the entire tuning range. At 36 °C, the tuning range reaches up to 107 nm. The divergence angle of the MEMS-VCSEL is approximately 5.6° for all tuning wavelengths. The intrinsic linewidth of an unpackaged device is 21 MHz. Quasi-error-free operation at 12.5 Gbps using a directly modulated MEMS-VCSEL is reported for a record 60 nm tuning, showing the potential of the so-called colorless source in WDM applications.

Item Type: Article
Erschienen: 2016
Creators: Paul, Sujoy and Haidar, Mohammad Tanvir and Cesar, Julijan and Malekizandi, Mohammadreza and Kögel, Benjamin and Neumeyr, Christian and Ortsiefer, Markus and Küppers, Franko
Title: Far-field, linewidth and thermal characteristics of a high-speed 1550-nm MEMS tunable VCSEL
Language: English
Abstract:

We report an electrically pumped 1550 nm MEMS tunable VCSEL with a continuous tuning of 101 nm at 22 °C. The top MEMS-DBR with built-in stress gradient within the dielectric layers is deposited in a low-temperature PECVD chamber on an InP-based half-VCSEL, structured by surface-micromachining and electrothermally actuated for continuous wavelength tuning. With 2.6 mA threshold current, the laser shows maximum CW output power of 3.2 mW at 1560 nm. The MEMS-VCSEL operates in single-mode with SMSR > 39 dB across the entire tuning range. At 36 °C, the tuning range reaches up to 107 nm. The divergence angle of the MEMS-VCSEL is approximately 5.6° for all tuning wavelengths. The intrinsic linewidth of an unpackaged device is 21 MHz. Quasi-error-free operation at 12.5 Gbps using a directly modulated MEMS-VCSEL is reported for a record 60 nm tuning, showing the potential of the so-called colorless source in WDM applications.

Journal or Publication Title: Opt. Express
Volume: 24
Number: 12
Publisher: OSA
Uncontrolled Keywords: Lasers, tunable; Linewidth; Optical microelectromechanical devices; Vertical cavity surface emitting lasers
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics > Photonics and Optical Communications
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics
18 Department of Electrical Engineering and Information Technology
Date Deposited: 31 Mar 2017 08:56
Official URL: http://dx.doi.org/10.1364/OE.24.013142
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