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Pulse Picker

QBY-BT Pockels cell driver is an encased version of QBY-4001, a Pockels cell driver by OEM Tech based on GaN transistors. It provides bipolar voltage pulses (3-4 ns rise/fall) on the outputs to control the birefringence of an electro-optical crystal to change the polarization state of light passing through. It is a compact bench-top ...

Specifications

Voltage Range: Not Specified
Rep Rate Range: Single Shot to 10 Hz
Pulse Width Range: 10 – 1000 ns
Optical Rise And Fall Time: 4 ns
HVSW-04 pulse picker is a dedicated high voltage high repetition rate Pockels cell driver for pico- and femtosecond lasers. It represents a combination of two fast drivers (based on MOSFET technology) in a full-bridge schema.  Using the pulse picker driver one chooses between two operation modes: fixed width short pulses ...

Specifications

Voltage Range: Not Specified
Rep Rate Range: Single Shot to 1 MHz, Single Shot to >1 MHz
Pulse Width Range: 15 – 2000 ns
Optical Rise And Fall Time: 5 ns
Interpulse Interval, Min: 50 ns

Pulse Pickers: Precision Control in Ultrafast Laser Systems

Pulse pickers are essential components in ultrafast laser systems, enabling the selection of specific pulses from high-frequency pulse trains. By isolating individual pulses, these devices allow for precise control over pulse repetition rates, which is crucial in applications requiring high pulse energies or specific timing sequences.

Understanding Pulse Picker Technology

Pulse pickers operate as fast optical switches, selectively transmitting desired pulses while blocking others. Two primary technologies are employed:

  • Electro-Optic Modulators (EOMs): Utilize the Pockels effect, where an applied electric field alters the refractive index of a crystal, changing the polarization state of light. When combined with polarizers, this setup allows for rapid switching of light pulses.

  • Acousto-Optic Modulators (AOMs): Employ sound waves within a crystal to diffract and control light beams. AOMs are known for their high extinction ratios and fast response times, making them suitable for high-repetition-rate applications.

The choice between EOMs and AOMs depends on factors such as desired repetition rate, extinction ratio, and system compatibility.

Key Features and Capabilities

Modern pulse pickers offer a range of features to meet diverse application needs:

  • High Repetition Rate Handling: Capable of operating with pulse trains up to 100 MHz, allowing for flexibility in various laser systems.

  • Low Insertion Loss: Ensures minimal energy loss during pulse selection, maintaining the integrity of transmitted pulses.

  • Fast Rise/Fall Times: Enables precise timing control, essential for applications requiring exact pulse synchronization.

  • Compact and Robust Design: Facilitates integration into existing optical setups without significant space or structural modifications.

These capabilities make pulse pickers versatile tools in advanced photonics applications.

Applications Across Industries

Pulse pickers are utilized in various fields, including:

  • Scientific Research: Facilitating time-resolved spectroscopy and ultrafast dynamics studies.

  • Medical Imaging: Enhancing techniques like multiphoton microscopy by controlling pulse delivery.

  • Material Processing: Enabling precise micromachining and surface structuring through controlled pulse application.

  • Telecommunications: Managing pulse sequences in high-speed optical communication systems.

The ability to control pulse timing and energy precisely makes pulse pickers indispensable in these advanced applications.

Explore Pulse Picker Solutions on FindLight

FindLight offers a curated selection of pulse pickers, including both electro-optic and acousto-optic models, to suit various ultrafast laser applications. Whether you're seeking high repetition rate capabilities or specific wavelength compatibility, our platform connects you with reliable suppliers and cutting-edge technology to meet your precision control needs.