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, 24 (12), pp. 13142-13156. OSA, [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 |
| Journal 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 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 |
| Date Deposited: | 31 Mar 2017 08:56 |
| Official URL: | http://dx.doi.org/10.1364/OE.24.013142 |
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