Related Experiment Video
Updated: Jun 22, 2026
08:39
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Multiwavelength mid-IR spatially-dispersive CW laser based on polycrystalline Cr2+:ZnSe
Optics Express
|June 2, 2009
Summary
Researchers developed a novel tunable laser for the near-infrared region. This polycrystalline chromium-doped zinc selenide laser offers ultrabroadband and multiwavelength capabilities for diverse applications.
Area of Science:
- Laser physics
- Materials science
- Optical engineering
Background:
- Continuous-wave (CW) lasers are essential tools in various scientific and industrial applications.
- Developing tunable, broadband laser sources is crucial for spectroscopy, sensing, and telecommunications.
Purpose of the Study:
- To demonstrate a novel multiwavelength, ultrabroadband, CW, tunable, polycrystalline Cr2+:ZnSe spatially-dispersive laser.
- To explore the laser's operational capabilities in the near-infrared (NIR) spectral region.
Main Methods:
- Fabrication and characterization of a polycrystalline chromium-doped zinc selenide (Cr2+:ZnSe) laser.
- Implementation of a spatially-dispersive resonator design.
- Tuning and spectral analysis of the laser output.
Main Results:
- Demonstrated a tunable, multiwavelength, ultrabroadband, CW laser operating in the NIR (2200-2800 nm).
- Achieved dual-wavelength operation tunable over a 600 nm range.
- Produced a continuous 135 nm ultrabroadband spectrum centered at 2500 nm.
- Generated multiline, tunable output spectra (200 nm wide) with up to 40 lines.
- Showcased simultaneous tuning of a 20-line ultrabroadband spectrum across 2200-2800 nm.
Conclusions:
- The developed Cr2+:ZnSe laser represents a significant advancement in tunable NIR laser technology.
- The laser's unique multiwavelength and ultrabroadband characteristics open new possibilities for advanced optical applications.
