Copper phthalocyanines as a mode-locker in an Er-doped fiber laser.

We demonstrate a mode-locked erbium-doped fiber laser (EDFL) utilizing copper phthalocyanines (CuPc) as a saturable absorber (SA) for the first time, to the best of our knowledge. The investigated SA was prepared using a simple, low-cost and straightforward technique, whereby the CuPc powder was embedded into polyvinyl alcohol (PVA) to form a thin film. The thin film acted as a mode-locker when it was incorporated into the EDFL cavity to produce output pulses at a repetition rate of 1.

Ultrafast soliton mode-locked fiber laser at 1560 nm based on Znq as a saturable absorber.

A mode-locked fiber laser was developed by using bis(8-hydroxyquinoline) zinc () as a saturable absorber (SA). is an organic metal chelate with several advantages such as good saturable absorption, relatively high damage threshold, and an easy, low-cost, and simple fabrication process. The developed SA based on has a linear absorption (at 1560 nm), modulation depth, and saturation intensity of 1.