Advertisement
Quick Links
2016-07
Acousto-Optic Modulator Driver
Including: Basic Modulator Alignment
Instruction Manual
750c Series – Analog and Digital
Key to model types :
Base model features TTL buffer compatible modulation input level and 24/28Vdc supply.
'o' indicates the base models standard frequency
'C' indicates case style
and where appended,
'm' indicates options (combinations possible)
'ff' indicates non-standard frequency e.g.
Tel: +1 703 321 8301, Fax: +1 703 321 8546, e-mail:
ISOMET (UK) Ltd, 18 Llantarnam Park, Cwmbran, Torfaen, NP44 3AX, UK.
Tel: +44 1633-872721, Fax: +44 1633 874678, e-mail:
Dual Modulation
75o.C-m-ff
1
:
40MHz
2
:
80MHz
3
:
110MHz
4
:
150MHz
5
:
200MHz
6
:
250MHz
2
:
2 Watt output
3
:
3 Watt output
4
:
4 Watt output
6
:
6 Watt output
L
:
+15V supply operation
50
:
50MHz
120
:
120MHz
ISOMET CORP, 5263 Port Royal Rd, Springfield, VA 22151, USA.
www.ISOMET.com
ISOMET
isomet@isomet.com
isomet@isomet.co.uk
Advertisement
Subscribe to Our Youtube Channel
Related Manuals for ISOMET 750c Series
Summary of Contents for ISOMET 750c Series
- Page 1 ISOMET CORP, 5263 Port Royal Rd, Springfield, VA 22151, USA. Tel: +1 703 321 8301, Fax: +1 703 321 8546, e-mail: isomet@isomet.com www.ISOMET.com ISOMET (UK) Ltd, 18 Llantarnam Park, Cwmbran, Torfaen, NP44 3AX, UK. Tel: +44 1633-872721, Fax: +44 1633 874678, e-mail: isomet@isomet.co.uk...
- Page 2 755c-6 : 200MHz, 6.5W output, +24Vdc supply Figure 2 is a block diagram of 750c series driver. The center frequency of the driver is determined by the free-running quartz-crystal oscillator. This frequency accuracy and stability are better than 25ppm; the oscillator is not temperature stabilized.
- Page 3 SERIOUS DAMAGE TO THE AMPLIFIER MAY ALSO RESULT IF THE RF OUTPUT CONNECTOR IS OPERATED OPEN-CIRCUITED OR SHORT-CIRCUITED. All 750c series drivers require a stable d-c power for operation. The required voltage is +24 / 28Vdc at a current drain of approximately 470mA EXCEPT model 750c-L. This lower power driver operates from 15Vdc.
-
Page 4: Installation And Adjustment
ISOMET INSTALLATION AND ADJUSTMENT Install the Driver on a heat sink as shown in figure 1. Use heat conducting compound between the Driver and mounting face and the heat sink. With no d-c power applied, connect the positive (+) DC to the center terminal of the feed-thru terminal as shown in figure 1. - Page 5 ISOMET If fitted, remove the PWR ADJ snap-in plugs from the driver case (see fig 1). The PWR ADJ pot is a multi-turn type. Minimum power is when fully anti-clockwise (CCW). With an insulated alignment tool or screwdriver: Rotate the PWR ADJ potentiometer CCW at least 11 turns, then CW approx 5 turns.
-
Page 6: Maintenance
ISOMET MAINTENANCE Cleaning It is of utmost importance that the optical apertures of the deflector optical head be kept clean and free of contamination. When the device is not in use, the apertures may be protected by a covering of masking tape. - Page 7 ISOMET D-Mod A-Mod +Vdc ISOMET Mounting Flange to Heatsink Apply Thermal Compound Max. Temp 70deg C Figure 1: Driver Installation D-Mod Input +Vcc +Vdc Oscillator Output Mixer A-Mod Input Pre-Amp PA Transistor Figure 2: Driver Block Diagram...
- Page 8 ISOMET RF Carrier Modulation Signal Input Amplitude Modulated RF Output Only analog modulation function shown above. (D-Mod = constant 5V / TTL high) The modulation input is a combination of BOTH analog and digital control as illustrated below. Peak Level...
- Page 9 ISOMET Schematic for an AO modulator with 750c series driver Intensity Modulation (x2 inputs) 752c Input Laser Beam BRAGG 1st Order Deflected Beam 0th Order The input Bragg angle, relative to a normal to the optical surface and in the plane of deflection is :...
Need help?
Do you have a question about the 750c Series and is the answer not in the manual?
Questions and answers