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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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Published on: May 30, 2014

Terahertz-wave parametric oscillator with a misalignment-resistant tuning cavity.

Bo Sun¹, Sanxing Li, Jinsong Liu

¹Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China. sunbo_xt@yahoo.com.cn

|May 20, 2011

Summary

This study introduces a novel terahertz-wave parametric oscillator (TPO) using a corner-cube resonator. The new design enables tunable terahertz (THz) wave generation with enhanced stability and control.

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Area of Science:

Optics and Photonics
Terahertz (THz) Science and Technology

Background:

Terahertz (THz) wave generation is crucial for various applications.
Conventional terahertz-wave parametric oscillators (TPOs) often require complex alignment and are sensitive to cavity misalignment.

Purpose of the Study:

To demonstrate a new terahertz-wave parametric oscillator (TPO) design utilizing a corner-cube resonator.
To achieve tunable monochromatic terahertz (THz) wave generation with improved stability and control.

Main Methods:

Development of a terahertz-wave parametric oscillator (TPO) incorporating a corner-cube prism (CCP) and a flat mirror.
Utilizing a novel cavity configuration for THz wave generation.
Implementing mirror rotation for tunability and CCP rotation for intensity and pulse width control.

Main Results:

Tunable monochromatic terahertz (THz) waves generated by rotating the flat mirror.
Control over THz-wave output intensity and pulse width achieved by rotating the corner-cube prism (CCP).
Significant improvement in TPO stability against cavity misalignment (1-2 orders of magnitude) compared to conventional designs.

Conclusions:

The proposed corner-cube resonator configuration offers a simpler method for tunable terahertz (THz) wave generation.
This design enhances the stability and controllability of terahertz-wave parametric oscillators (TPOs).
The findings pave the way for more robust and user-friendly THz sources.