A novel approach to selective wavelengths emission in mode-locked Nd:YVO 4 lasers via photon emission angles
Year: 2025
Type: article
Abstract: In this study, we successfully switched the wavelength of a mode-locked pulsed laser output from 1064 nm to 1086 nm by selecting the initial spontaneous emission photons for amplification inside the laser cavity. This was achieved by precisely adjusting the angle of photon propagation within the gain medium (Nd:YVO 4 crystal) and the cavity by introducing a two-pinhole aperture into the cavity. In fact, two setups with identical optical elements and spacing generate two laser beams with different wavelengths were obtained solely by using emitted photons at different angles. In the initial setup, with a pump power of 3.5W, the laser output consisted of pulses with wavelength of 1064 nm, 9nJ energy per pulse and ∼79 MHz repetition rate. In contrast, in the second setup which utilizing identical components to the first configuration, we achieved pulses with wavelength of 1086 nm and 4nJ energy per pulse and similar repetition rate with first one.
Source: Optics Express
DOI: 10.1364/oe.558788
Authors: Samira Alipour, Elham Barati, Maryam Jandaghi, Zahra Mohammadzahery, Maryam Abrishami, Mohamad Dashcasan, Hossein Bazyar
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4409483884