Analysis of FDML lasers with meter range coherence

Autor:	Pfeiffer, Tom, Draxinger, Wolfgang, Wieser, Wolfgang, Klein, Thomas, Petermann, Markus, Huber, Robert
Rok vydání:	2018
Předmět:	Physics - Instrumentation and Detectors Physics - Optics
Druh dokumentu:	Working Paper
DOI:	10.1117/12.2254792
Popis:	FDML lasers provide sweep rates in the MHz range at wide optical bandwidths, making them ideal sources for high speed OCT. Recently, at lower speed, ultralong-range swept-source OCT has been demonstrated1, 2 using a tunable vertical cavity surface emitting laser (VCSEL) and also using a Vernier-tunable laser. These sources provide relatively high sweep rates and meter range coherence lengths. In order to achieve similar coherence, we developed an extremely well dispersion compensated Fourier Domain Mode Locked (FDML) laser, running at 3.2 MHz sweep rate and 120 nm spectral bandwidth. We demonstrate that this laser offers meter range coherence and enables volumetric long range OCT of moving objects. Comment: 6 pages, 4 figures, draft manuscript for SPIE proceedings book
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1810.04974 Zobrazit plný text záznamu View this record from Arxiv