MT-A-VIS/IR/64, MT-A.5-VIS/IR/64 MT-A-VIS/IR/64, MT-A.5-VIS/IR AO MODULATOR/SHIFTER Product Overview These free space modulators are proposed with different aperture sizes and at various wavelength ranges. They have been specially designed for general purpose high speed application such as amplitude modulation. They can also be used as fixed frequency shifters or variable frequency shifters as well as a high speed but low resolution deflector. Features Large active aperture Linear polarization High diffraction efficiency Access to your operating manual Technical Specifications Parameter MT-xx MT-xx Material-Acoustic mode-velocity Optical Wavelength range (AR coated) Te [L] - 4 m/s VIS: 45nm -7 nm IR: 7nm-nm 64: 9nm- nm TECHNICAL DATA SHEET 4 Optical Transmission > 95 % Input / Output Polarization Active Aperture Linear / Linear x mm² or.5 x mm² Carrier Frequency / Frequency shift +/- MHz +/- MHz Separation Angle (-).3 mrad @ 64 nm 7.9 mrad @ 64 nm Static Extinction Ratio Rise / Fall time Diffraction Efficiency Analog Amplitude modulation bandwidth (-3 db) Max optical power density (CW) Input impedance > 33 db 6 ns / mm > 5 %, nom 9 % with TEM laser beam MHz, with.3 mm beam diameter VIS: 5 W/mm² IR/64: > W/mm² Nom 5 Ω V.S.W.R. Nom <./ RF Power / Connector VIS: W / SMA IR/64: W /SMA VIS: W / SMA for A VIS:. W/ SMA for A.5 IR/64: W /SMA Size / Weight (Lxlxh) 5.9 x.4 x 7.3 / 5 g IN PRO 4 Operating Temperature Storage Temperature + to +4 Non condensing -4 to +5 Non condensing On request VARIABLE FREQUENCY SHIFT +/- 5 MHz *Diffraction Efficiency: >%@ F, >6% over range +/- 5 MHz *Diffraction Efficiency: >%@ F, >6% over range *Diffraction efficiency depends on wavelength
Rise Time (Tr) is beam diameter (Ф) sensitive: Φ Tr =. 66 V Separation angle (Δθ) is wavelength (λ) sensitive: Amplitude modulation bandwidth (F -3dB) is rise time (Tr) sensitive: F - 3dB.4 = Tr RF power (P) is wavelength (λ) sensitive: λf Δ θ = V P = P λ λ How to determine your model MT-B5-A.5-VIS CARRIER FREQUENCY MHz MHz FREQUENCY RANGE B5 5 MHz B3 3 MHz -- without frequency range WAVELENGTH RANGE VIS 45 nm - 7 nm IR 7 nm - nm 64 9 nm - nm APERTURE A.5.5 x mm² A x mm²
Relative Efficiency versus RF power AO relative Efficiency vs driver MOD IN Efficiency,,, Ratio (RF power / Pmax) Efficiency,,, Modulation Input Voltage (V) Rise Time (black) / Analog Modulation BW (-3dB) vs Beam diameter 6 9 7 5 3 ns 9 7 5 3,,3,5,7,9,,,3 mm 4 MHz** 6 4
Relative Efficiency / AOM temporal response %, -, 5 5 5 3 35 4 45 5 55 6 65 7 75 5 9 95 - - - - time (ns) Carrier MOD IN AOM response Relative Efficiency / AOM temporal response MHz with,7 mm beam dia, % -, - 3 547 3 347 63 47 43 6 947 33 34 3747 - - - time (ns) Carrier MOD IN AOM response
3 4 A Threaded Holes M,5 Depth,5mm Maxi A 59,5 5,9 3 Bragg Angle Adjust +,5,5 +, Depth,5mm Maxi B B 6,5,,4 C 7,3 9, C 3,9,4 3,9 D D SMA Connector E F B //6 E.D A 5//3 OGB Indice Auteur Index Date Author Conception Design Vérification Checking Tolérance Tolerance Echelle Scale E.D : E.D ISO 76mK Format A4 Mise en page Plan initial / Initial Drawing Référence / Reference IN-PRO-4 Modifications PLAN D'INTERFACE / OUTLINE DRAWING Ce document est la propriété de A.A.SA. Il est strictement interdit de reproduire ce document ou une partie sans l'autorisation de A.A.SA. This document is the property of A.A.SA. It is strictly prohibited to reproduce this document or a part without the authorization of A.A.SA. 3 4 A.A. SA OPTO-ELECTRONIQUE DIVISION, rue Nicolas Appert F-99 ORSAY tel : 9 76 76 fax : 76 9 5 3 Folio / Sheet Indice / Index / B E F