Highly Coherent Tunable Frequency Combs

Introduction of optical frequency combs during the last decade has revolutionized multiple disciplines, with metrology, remote sensing, spectroscopy, ranging, vibrometry and imaging being the most prominent applications. However, it is also recognized that a set of fundamental and practical limitations are preventing widespread use of frequency comb sources across general imaging/sensing platforms. To be useful, frequency comb must possess sufficient spectral bandwidth, have high signal-to-noise ratio (SNR) across all generated frequency tones and be capable of addressing any frequency grid. Article not available.