Amplitude Noise and Timing Jitter Characterization of a High-Power Mode-Locked Integrated External-Cavity Surface Emitting Laser
| Autor: | Sandro M. Link, Ursula Keller, Bauke W. Tilma, C. A. Zaugg, Mario Mangold, M. Golling, Alexander Klenner |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
lcsh:Applied optics. Photonics
Optical communication semiconductor lasers law.invention Semiconductor laser theory Optics law lcsh:QC350-467 Electrical and Electronic Engineering Jitter Physics infrared lasers business.industry Bandwidth (signal processing) lcsh:TA1501-1820 Laser Atomic and Molecular Physics and Optics mode-locked lasers Amplitude Diode-pumped lasers Optoelectronics Disk laser ultrafast lasers business Ultrashort pulse lcsh:Optics. Light |
| Zdroj: | IEEE Photonics Journal, Vol 6, Iss 1, Pp 1-9 (2014) |
| ISSN: | 1943-0655 |
| Popis: | We present a timing jitter and amplitude noise characterization of a high-power mode-locked integrated external-cavity surface emitting laser (MIXSEL). In the MIXSEL, the semiconductor saturable absorber of a SESAM is integrated into the structure of a VECSEL to start and stabilize passive mode-locking. In comparison to previous noise characterization of SESAM-mode-locked VECSELs, this first noise characterization of a MIXSEL is performed at a much higher average output power. In a free-running operation, the laser generates 14.3-ps pulses at an average output power of 645 mW at a 2-GHz pulse repetition rate and an RMS amplitude noise of 0.15% [1 Hz, 10 MHz]. We measured an RMS timing jitter of 129 fs [100 Hz, 10 MHz], which represents the lowest value for a free-running passively mode-locked semiconductor disk laser to date. Additionally, we stabilized the pulse repetition rate with a piezo actuator to control the cavity length. With the laser generating 16.7-ps pulses at an average output power of 701 mW, the repetition frequency was phase-locked to a low-noise electronic reference using a feedback loop. In actively stabilized operation, the RMS timing jitter was reduced to less than 70 fs [1 Hz, 100 MHz]. In the 100-Hz to 10-MHz bandwidth, we report the lowest timing jitter measured from a passively mode-locked semiconductor disk laser to date with a value of 31 fs. These results show that the MIXSEL technology provides compact ultrafast laser sources combining high-power and low-noise performance similar to diode-pumped solid-state lasers, which enable world-record optical communication rates and low-noise frequency combs. |
| Databáze: | OpenAIRE |
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