Group: Newport
Catalog excerpts
Electro-Optic Modulators Electro-Optic Modulator Family Scientists and engineers rely on our optical modulators for exceptional performance, quality, ease of use, broad selection, and excellent value. Simply Better™ Photonics
Open the catalog to page 1Simply Better ™ Photonics New Focus Simply Better Photonics New Focus™ offers a broad line of optical modulators and drivers that are versatile, reliable and easy to use. All our optical modulators are based on the electro-optic or Pockels’ effect—the linear dependence of the index of refraction on an applied electric eld. Applying a voltage across the electrodes of an electro-optic crystal changes the effective refractive index and thus the phase of light as it passes through the crystal. Our amplitude modulators span the frequency range from DC to 250 MHz while our phase modulators span...
Open the catalog to page 2Tunable Diode Lasers Electro-Optic Modulator Selection Guide Standard Phase Modulators Phase modulators can generate frequency sidebands on Frequency range from DC to 9.2 GHz Resonant designs offer very low drive voltages Blue, Visible, and IR Wavelengths Modulator Series1 Wavelength Range Type Operating Frequency2 Modulation Depth Max Optical Intensity3 Material Standard Phase Modulators Note: All modulators are built with universal mounting options 1 More specifications available on the Newport website. Specifications are subject to change 2 Resonant modulators must be specified to a...
Open the catalog to page 3High Damage Threshold Phase Modulators Amplitude Modulators • High optical-damage thresholds—5x our LiNb03 versions • Covering frequency range from 10kHz to 2.0 GHz • Resonant designs with large modulation depths High Efficiency Phase Modulators • High efficiency (2x standard) for high modulation depth • Frequency range from 0.5 to 2.0 GHz • Blue, Visible and IR wavelengths • Used to create power fluctuations in signal • Covering frequency range from DC to 250 MHz • Can be used as electronically variable wave plates Broadband and Resonant Modulator Drivers • High-Voltage Amplifier for...
Open the catalog to page 4Simply Better ™ Photonics Phase Modulators Phase modulators are used to vary the phase of an optical beam. When driven sinusoidally, phase modulators can generate frequency sidebands on a cw optical beam. Sinusoidal phase modulation at a frequency Ω generates frequency sidebands at multiples of Ω about the central optical frequency. Given a sinusoidal phase modulation at frequency Ω and a peak phase modulation m, the phase variation is ø(t)=msin(Ωt). The electric eld of the optical beam after passing through the modulator can be seen below. Left: When a phase modulator is used, the laser...
Open the catalog to page 5Tunable Diode Lasers Phase and Amplitude Modulator Definitions of Characteristics Maximum Optical Intensity The maximum optical intensity of a 1-mm-diameter beam that can be passed through the crystal without causing photorefractive damage. Note that this optical damage threshold is strongly wavelength dependent. Maximum RF Power The maximum recommended RF drive power. Above this power, the electronic components will saturate or thermal effects in the crystal (such as thermal lensing) will become a problem. Maximum Vπ The voltage required to achieve a π phase shift at a given wavelength. It...
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