RTP Q-Switches for High-Speed Electro-Optic Switching

RTP Q-switches are electro-optic devices designed for fast laser modulation and optical switching in high-performance laser systems. Based on RTP crystals (isomorphous to KTP), these devices offer excellent electro-optic performance, high laser damage threshold, and stable operation across a wide spectral range.

RTP crystals exhibit low optical loss, high resistivity, and strong electro-optic coefficients, enabling reliable switching performance in demanding laser applications. The crystals are arranged with a 90° rotation around the optical axis to compensate static birefringence and ensure stable polarization control.

Using the transverse electro-optic effect, RTP Q-switches support adjustable operating voltages and maintain excellent stability under high repetition frequencies.

Key Features

• Low operating voltage (typical half-wave voltage around 2000 V)

• Wide wavelength operation from 420–2800 nm

• High laser damage threshold (>10 J/cm² @1064 nm, 10 ns, 10 Hz)

• Low insertion loss (<1% @1064 nm)

• High resistivity (>10¹¹ Ω·cm) ensuring stable electro-optic performance

• Non-deliquescent crystal for improved environmental stability

• No piezoelectric ringing, suitable for high repetition rate lasers up to 100 kHz

Typical Applications

• Laser Q-switching

• Pulse selection

• Phase modulation

• Cavity dumping

• Optical attenuation

With high stability, wide spectral coverage, and excellent electro-optic properties, RTP Q-switches provide reliable modulation and switching solutions for advanced laser systems and photonics applications.