Dual-wavelength synchronously mode-locked Nd:LaGGG laser operating at 1.3 μm with a SESAM

Abstract

A diode-end-pumped synchronously dual-wavelength mode-locked Nd:LaGGG laser operating at 1.3 μm with a semiconductor saturable absorber mirror was demonstrated for the first time.

Preparation and Optical Properties of Nd:Bi2Ti2O7 Laser Crystal with Disordered Structure and Attractive Multiwavelength Emission Characteristics

“…Especially, Nd-doped laser crystals are key gain media for the realization of multiwavelength lasers . First, the Nd ion possesses long upper-level lifetimes, large absorption, and emission cross sections. , Second, more transition probabilities can be excited by doping the Nd 3+ into the host crystal, providing more chances for multiwavelength emissions. , Up to date, many Nd-doped laser crystals with multiwavelength emission features were studied, such as Nd:YVO 4 , Nd:La 2 CaB 10 O 19 , Nd:YMgB 5 O 10 , and so forth. Until now, the exploration of laser materials possessed multiwavelength emission features in crystal fields has been ongoing.…”

“…2 First, the Nd ion possesses long upper-level lifetimes, large absorption, and emission cross sections. 4,5 Second, more transition probabilities can be excited by doping the Nd 3+ into the host crystal, providing more chances for multiwavelength emissions. 4,6 Up to date, many Nd-doped laser crystals with multiwavelength emission features were studied, such as Nd:YVO 4 , 7 Nd:La 2 CaB 10 O 19 , 8 Nd:YMgB 5 O 10 , 9 and so forth.…”

A few-picosecond and high-peak-power passively mode-locked erbium-doped fibre laser based on zinc oxide polyvinyl alcohol film saturable absorber

“…Another simple, low cost and accessible technique is to use a saturable absorber (SA), and this has recently become the most interesting research in producing passive mode-locked lasers. To date, many types of SAs have been investigated and used to implement a modelocking operation, such as semiconductor saturable absorption mirrors (SESAMs) [6,7], nonlinear polarization rotation (NPR) [8,9], and the nonlinear-optical loop mirror (NOLM) [10,11]. Yet each of these SAs has some limitations: SESAM is complex to fabricate, costly, has a narrow operation wavelength range and the response time is limited.…”