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You are here:   » Products » Optical Technologies » Components » Optics » Electro Optics » KTN Solid-State Laser Beam Scanner

Electro Optics

KTN Solid-State Laser Beam Scanner

Key Features

  • No moving parts
  • 100x faster than a polygon mirror
  • 40% smaller than conventional company products
  • Bi-direction, voltage-controlled, continuous and step scanning
  • Scan up to 10 degrees deflection at 100kHz
  • Wide operation wavelength range: 488 - 3500nm

Description

High-speed, voltage-controlled laser beam scanner with novel optical phenomenon using KTN crystal

The new spectrometer is using a combination of a KTa1-xNbxO3 (KTN) optical beam scanner and a wavelength dispersion element. This spectrometer can measure a wide optical spectrum in microsecond-order time because of the fast scan response of KTN optical beam scanner. The spectrometer will be used to measure microsecond optical pulses. The KTN scanner is expected to observe ultrafast luminous phenomena.

The KTN scanner is “all solid state”, “opto-electric” without any moving parts. This scanner can steer a light beam in two-dimensional direction for both continuous and step scanning modes by controlling voltage. The operation wavelength is in the 532 – 4000 nm range. The scanner chip is composed of a small KTN crystal chip with electrodes. This makes it possible to reduce the device volume by 1/100 compared to moving mirrors such as polygon mirrors and galvanic mirrors.
This scanner can steer a light beam in tow-dimensional direction for both continuous and step scanning modes by controlling voltage.

NTT-AT successfully assembled a KTN scanner as a compact module with a fiber pigtailing. The module is 20x30x60 mm in size. The temperature of the KTN scanner chip is controlled by TEC. The scanning angle is 10 degrees (±5 degrees) and the response speed is less than 1 micro second.

Applications

  • OCT Swept Laser Source and Imaging
  • Laser Scanning Microscope
  • Flow Cytometry
  • High-speed Spectrometer and more