Ultralow-repetition-rate, high-energy, polarization-maintaining, Er-doped, ultrashort-pulse fiber laser using single-wall-carbon-nanotube saturable absorber

Y Senoo; N Nishizawa; Y Sakakibara; K Sumimura; E Itoga; H Kataura; K Itoh

doi:10.1364/OE.18.020673

Ultralow-repetition-rate, high-energy, polarization-maintaining, Er-doped, ultrashort-pulse fiber laser using single-wall-carbon-nanotube saturable absorber

Opt Express. 2010 Sep 27;18(20):20673-80. doi: 10.1364/OE.18.020673.

Authors

Y Senoo¹, N Nishizawa, Y Sakakibara, K Sumimura, E Itoga, H Kataura, K Itoh

Affiliation

¹ Division of Advanced Science and Biotechnology, Osaka University, Suita, Osaka 565-0871, Japan.

PMID: 20940963
DOI: 10.1364/OE.18.020673

Abstract

An ultralow-repetition-rate, all-polarization-maintaining (PM), Er-doped, ultrashort-pulse fiber laser was demonstrated using a single-wall-carbon-nanotube polyimide film. Using a ring cavity configuration, output pulses with pulse energy of 0.7-2.6 nJ were obtained at an ultralow repetition rate of 943-154 kHz for a fiber length of 0.1-1.3 km. A novel θ (theta) cavity configuration was proposed, which enabled us to reduce the required fiber length by half. A repetition rate of 132 kHz was achieved using this configuration with 909 m of PM fiber.