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Higher-order photon statistics of single-mode laser diodes and microchip solid-state lasers
Optics Letters
|November 23, 2007
Summary
We analyzed photon statistics in laser diodes (LDs) and solid-state lasers (SSLs). Above threshold, SSLs show non-Gaussian fluctuations, unlike the Gaussian behavior in LDs, due to deterministic dynamics.
Area of Science:
- Optics and Photonics
- Laser Physics
- Quantum Optics
Background:
- Understanding laser dynamics is crucial for various applications.
- Photon statistics reveal fundamental properties of laser emission.
- Distinguishing laser diode (LD) and solid-state laser (SSL) behavior is important.
Purpose of the Study:
- To investigate and compare higher-order photon statistics in LDs and SSLs.
- To identify the key factors influencing fluctuation characteristics above lasing threshold.
- To correlate dynamic trajectory in phase space with statistical properties.
Main Methods:
- Analysis of higher-order photon statistics.
- Operation of laser diodes (LDs) and microchip solid-state lasers (SSLs) above lasing threshold.
- Examination of fluctuation distributions and phase space dynamics.
Main Results:
- Significant differences in fluctuation features were observed between LDs and SSLs above threshold.
- SSLs exhibit asymmetric non-Gaussian distributions, while LDs maintain Gaussian fluctuations.
- The ratio of fluorescence to photon lifetimes dictates the deterministic dynamic trajectory and higher-order statistics.
Conclusions:
- Laser diode and solid-state laser photon statistics differ significantly above threshold.
- Non-Gaussian characteristics in SSLs are linked to asymmetric distributions and deterministic dynamics.
- The fluorescence to photon lifetime ratio is a critical parameter for controlling laser statistical behavior.
