Acousto-Optic Q-Switch

A high power RF driver module is available in output powers of 50W, 75W or 100W. Powered from 220VAC or 110VAC, the modulation inputs allow either full digital control or activation of an internal pulse generator. First pulse suppression is automatically implemented.

There are two kinds of E-O modulations. One is longitudinal E-O modulation if the directions of electric field and light propagation are the same. The KDP isomorphic crystals are normally used in this scheme. If the directions of electric field and light propagation are perpendicular, it is called transverse E-O modulation. The LiNbO3, MgO:LiNbO3, BBO and KTP crystals are usually employed in this scheme.

Our Capabilities:
Dimension Tolerance:
(Wí+0.1mm) x (Hí+0.1mm) x (L+0.1/-0.1mm) (L<2.5mm)
Clear Aperture: central 90% or the diameter, No visible scattering paths or centers when inspected by a 50mW green laser
Flatness: less than ª-/8 @ 633nm
Transmitting Wavefront Distortion: less than ª-/8 @ 633nm
Chamfer: í_0.2mmx45íp
Chip: í_0.1mm
Scratch/Dig Code: better than 10/5 to MIL-PRF-13830B
Parallelism: í_20 arc seconds
Perpendicularity: í_5 arc minutes
Angle Tolerance: ªñª+í_0.25íp, ªñª+í_0.25íp
Damage threshold[GW/cm2]:
>1 for 1064nm,TEM00, 10ns, 10HZ (polished only);
>0.5 for 1064nm,TEM00, 10ns, 10HZ(AR-coated) ;
>0.3 for 532nm,TEM00, 10ns, 10HZ(AR-coatd).
Quality Warranty Period: one year under proper use.

A Pockels cell alters the polarization state of light passing through it when an applied voltage induces birefringence changes in an electro-optic crystal such as DKDP (KD*P) and BBO. When used in conjunction with polarizers, these cells can function as optical switches, or laser Q-switches. Frequently, Q-switches are employed in laser cavities for the purpose of shortening the output pulse, resulting in a light beam with enhanced peak intensity. In order to provide the device best suited to your purpose, we offer the DKDP (KD*P) series and LiNbO3 series Pockels cell.

You can operate the cell with either a pull-up voltage or a pulldown voltage. Changing the polarity will only change the direction of the phase rotation. In other words, the pull-down voltage Q-switch use ª-/4-voltage pulses on the Pockels cell and the pull-up voltage Q-switch use ª-/2-voltage pulses on the Pockels cell. You should not, however, operate the cell with a constant applied voltage potential between the terminals, or a duty cycle greater than ~ 2%.

Applications:
OEM laser systems
Medical/cosmetic lasers
Versatile R&D laser platforms
Military & aerospace laser systems

Product Feature:
1). Industry-proven performance;
2). Dry;
3). Highest (99.8% KD*P) deuteration levels in industry;
4). Adhesive/Epoxy-free assembly;
5). Apertures from 8mm diameter up to 20mm diameter;
6). Lowest absorption in industry;
7). High-reliability;
8). Economical upgrade/rebuild program;
9). Highest optical damage thresholds;
10). Accessible technical support;
11). Standard performance documentation;
12). One-year limited warranty.
13). Operation up to 1kHz.

Specification/Models:
D-EO-Q-25.4-39-X-C
Outline Dimension: ª¦25.4x39mm
Aperture: ª¦10mm
Single pass optical transmission:>98%
Voltage (V ª-/4) @1064nm: 3.2KV
Extinction Ratio: >1000:1
Single Pass Insertion Loss:<2%
ICR: >2000:1
VCR: >1500:1
Transmitted Wave Front Distortion: ª- /10
Capacitance: 3pF
Spectral Range of Operation:240-1400nm
Damage Threshold: >1GW/cm2

Features

Low insertion loss
Wide wavelength range
Low crosstalk
High stability, high reliability
Epoxy-free on optical path
Latching and non-latching

Application

Metropolitan area network
R&d in laboratory
System monitoring
Configurable oadm

Parameters Osw-1×2
Wavelength range Nm 650~1310 1260~1670
Testing wavelength Nm 650/780/850/980/1064/1310 1310/1490/1550/1625/1650
Insertion loss Db Typ:0.6, max:1.0 Typ:0.5 , max:0.8
Return loss Db =30 =50
Crosstalk Db =35 =55
Pdl Db =0.05
Wdl Db =0.25
Tdl Db =0.25
Repeatability Db =±0.02
Power supply V 3.0 or 5.0
Lifetime Cycle =107
Switch time Ms =8
Transmission power Mw =500
Operation temperature ? 40~+85
Storage temperature ? 40~+85
Weight G 16
Dimension Mm (l)27×(w)12.6×(h)8.5(±0.2)

Features

Low insertion loss
Wide wavelength range
Low crosstalk
High stability, high reliability
Epoxy-free on optical path
Latching and non-latching

Application

Metropolitan area network
R&d in laboratory
System monitoring
Configurable oadm

Parameters Osw-2x2
Fiber typeNm MmSm
Testing wavelength Nm 630/650/780/850/980/1064/1310 1310/1490/1550/1625/1650
Insertion loss Db Typ:1.0, max:1.3 Typ:1.0 , max:1.2
Return loss Db =30 =50
Crosstalk Db =35=50
Wdl Db =0.25
Tdl Db =0.25
Repeatability Db =±0.02
Power supply V 3.0 or 5.0
Lifetime Cycle =107
Switch time Ms =8
Transmission power Mw =500
Operation temperature ? -40~+85
Storage temperature ? -40~+85
Weight G 16
Dimension Mm (l)28×(w)12.6×(h)8.5(±0.2)

Features

Low insertion loss
Wide wavelength range
Low crosstalk
High stability, high reliability
Epoxy-free on optical path
Latching and non-latching

Application

Metropolitan area network
R&d in laboratory
System monitoring
Configurable oadm

Parameters Osw-2x2b
Wavelength range Nm 650~1310 1260~1670
Testing wavelength Nm 650/780/850/980/1064/1310 1310/1490/1550/1625/1650
Insertion loss Db Typ:0.6, max:1.0 Typ:0.5 , max:0.8
Return loss Db =30 =50
Crosstalk Db =35 =50
Pdl Db =0.05
Wdl Db =0.25
Tdl Db =0.25
Repeatability Db =±0.02
Power supply V 3.3 or 5.0
Lifetime Cycle =107
Switch time Ms =8
Transmission power Mw =500
Operation temperature ? -40~+85
Storage temperature ? -40~+85
Weight G 16
Dimension Mm (l)27×(w)12.6×(h)8.5(±0.2)

Features

Low insertion loss
Wide wavelength range
Low crosstalk
High stability, high reliability
Epoxy-free on optical path
Latching and non-latching

Application

Metropolitan area network
R&d in laboratory
System monitoring
Configurable oadm

Parameters Osw-d2x2b
Wavelength range Nm 650~1310 1260~1670
Testing wavelength Nm 650/780/850/980/1064/1310 1310/1490/1550/1625/1650
Insertion loss Db Typ:0.6, max:1.0 Typ:0.5 , max:0.8
Return loss Db =30 =50
Crosstalk Db =35=50
Pdl Db =0.05
Wdl Db =0.25
Tdl Db =0.25
Repeatability Db =±0.02
Power supply V 3.0 or 5.0
Lifetime Cycle =107
Switch time Ms =8
Transmission power Mw =500
O i toperation temperature ? -40~+85
Storage temperature ? -40~+85
Weight G 16
Dimension Mm (l)27×(w)12.5×(h)8.2(±0.2)

Features

Low insertion loss
Wide wavelength range
Low crosstalk
High stability, high reliability
Epoxy-free on optical path
Latching and non-latching

Application

Metropolitan area network
R&d in laboratory
System monitoring
Configurable oadm

Parameters Osw-d1x2
Wavelength rangeNm650~13101260~1670
Testing wavelengthNm650/780/850/980/1064/13101310/1490/1550/1625/1650
Insertion lossDbTyp:0.6, max:1.0Typ:0.5 , max:0.8
Return lossDb=35=50
CrosstalkDb=40 =50
PdlDb=0.05
WdlDb=0.25
TdlDb=0.25
RepeatabilityDb=±0.02
Power supplyV3.0 or 5.0
LifetimeCycle=107
Switch timeMs=8
Transmission powerMw=500
Operation temperature?-40~+85
Storage temperature?-40~+85
WeightG16
DimensionMm(l)27×(w)12.6×(h)8.5(±0.2)