Acousto-Optic Modulators

266nm-10.6μm free space and fiber-coupled single channel and multi-channel AO modulators, Q Switches, frequency shifters, deflectors, tunable filters, and RF drivers.

Part Numbers

Wavelength

Active Aperture

Center Frequency

Bandwidth

Scan Angle

Material

AODF0003-QL230_110-020-266

266 nm

2×26.5 mm

230 MHz

110 MHz

5.1 mrad

Crystalline quartz

AODF0005-QL230_110-020-266

266 nm

2×2 mm

230 MHz

110 MHz

5.1 mrad

Crystalline quartz

AODF2005-QL200_100-020-266

266 nm

2.0×26.5 mm

200 MHz

100 MHz

4.6 mrad

Crystalline quartz

AODF2008-QL200_100-040-266

266 nm

4.0×4.0 mm

200 MHz

100 MHz

4.6 mrad

Crystalline quartz

AODF2001-QL170_070-070-355

355 nm

7 mm

170 MHz

70 MHz

4.3 mrad

Crystalline quartz

AODF2002-QL170_030-070-355

355 nm

7 mm

170 MHz

30 MHz

1.9 mrad

Crystalline quartz

AODF0006-QL110_16-060-364

364 nm

6 mm

110 MHz

16 MHz

1 mrad

Crystalline quartz

AODF2006-TS100_050-035-364

364 nm

3.5 mm

100 MHz

50 MHz

29.6 mrad

Tellurium dioxide

AODF2007-TS100_050-080-364

364 nm

8 mm

100 MHz

50 MHz

29.6 mrad

Tellurium dioxide

AODF0007-TS075_10-040-405

405 nm

4 mm

75 MHz

10 MHz

6.6 mrad

Tellurium dioxide

AODF0008-TS100_36-010-488

488 nm

1 mm

100 MHz

36 MHz

27.1 mrad

Tellurium dioxide

2AODF2003-TS088_44-100-515

515 nm

10× 10 mm

88 MHz

44 MHz

34.9×34.9 mrad

Tellurium dioxide

2AODF2001-TS085_40-100-532

532 nm

10 mm

85 MHz

40 MHz

32.4×32.4 mrad

Tellurium dioxide

AODF0009-TS100_36-010-561

561 nm

1 mm

100 MHz

36 MHz

30.04 mrad

Tellurium dioxide

2AODF2002-TS100_42-075-813

813 nm

7.5×7.5 mm

100 MHz

42 MHz

52.5×52.5 mrad

Tellurium dioxide

AODF0010-TS090_30-025-1064

1064 nm

2.5 mm

90 MHz

30 MHz

48.2 mrad

Tellurium dioxide

AODF2003-TL075_32-025-1083

1083 nm

2.5 mm

75 MHz

32 MHz

8.3 mrad

Tellurium dioxide

Part Numbers

Wavelength

Active Aperture

Center Frequency

Bandwidth

Diffraction Efficiency

Material

AOFS1001-TS020-030-633

633 nm

3 mm

20 MHz

/

> 80 %

Tellurium dioxide

AOFS1002-TS042-030-633

633 nm

3 mm

42 MHz

/

> 80 %

Tellurium dioxide

AOFS1003-TL100-030-633

633 nm

3 mm

100 MHz

/

> 80 %

Tellurium dioxide

AOFS1004-TL115-030-633

633 nm

3 mm

115 MHz

/

> 80 %

Tellurium dioxide

AOFS1005-TS042-030-633

633 nm

3 mm

42 MHz

/

> 80 %

Tellurium dioxide

AOFS1006-TS020-030-633

633 nm

3 mm

20 MHz

/

> 80 %

Tellurium dioxide

AOFS2001-TS042-020-030-633

633 nm

3 mm

42 MHz & 20 MHz

/

> 80 %

Tellurium dioxide

AOFS1008-TS070_5-010-1064

1064 nm

1.0 mm

73 MHz

5 MHz

> 80 %

Tellurium dioxide

AOFS1007-TS073_15-010-1064

1064 nm

1.0 mm

73 MHz

15 MHz

> 80 %

Tellurium dioxide

Part Numbers

Wavelength

Active Aperture

Operating Frequency

Diffraction Efficiency

Material

Cooling

AOM0012-QL200-035-266

266 nm

3.5 mm

200 MHz

>85%

Crystalline quartz

Conduction-cooled

AOM0011-QL110-060-343

343 nm

6 mm

110 MHz

>85%

Crystalline quartz

Water-cooled

AOM0009-QL170-060-355

355 nm

6 mm

170 MHz

>85%

Crystalline quartz

Water-cooled

AOM0006-QL110-030-532

532 nm

3 mm

110 MHz

>85%

Crystalline quartz

Conduction-cooled

AOM0010-TL080-020-450-900

450-900 nm

2 mm

80 MHz

>85%

Tellurium dioxide

Conduction-cooled

AOM0015-QL100-030-800

800 nm

3 mm

100 MHz

>85%

Crystalline quartz

Conduction-cooled

AOM0005-TL080-005-1045

1045 nm

0.5 mm

80 MHz

>85%

Tellurium dioxide

Conduction-cooled

AOM0007-QL068-030-1064

1064 nm

3 mm

68 MHz

>85%

Crystalline quartz

Conduction-cooled

AOM0008-GL041-060-9600

9.6 µm

6 mm

40.68 MHz

>80%

Germanium

Water-cooled

AOM0013-GL041-080-9600

9.6 µm

8 mm

40.68 MHz

>80%

Germanium

Water-cooled

AOM0001-GL041-080-10600

10.6 µm

8 mm

40.68 MHz

>80%

Germanium

Water-cooled

Part Numbers

Wavelength

Operating Frequency

Fiber Type

Rise Time

Insertion Loss

AOFM0010-TL080-P16-780

780 nm

80 MHz

PM780

≤ 50 ns

≤ 3 dB

AOFM0011-TL200-P16-780

780 nm

200 MHz

PM780

≤ 50 ns

≤ 3 dB

AOFM0018-TL200-F23-910-940

910- 940 nm

200 MHz

780

≤ 10 ns

≤ 3.5 dB

AOFM0017-TL200-P07-1030

1030 nm

200 MHz

PM980

≤ 10 ns

≤ 2.5 dB

AOFM0005-TL200-P07-1064

1064 nm

200 MHz

PM980

≤ 10 ns

≤ 2.5 dB

AOFM0008-TL250-P01-1064

1064 nm

250 MHz

PM980

≤ 8 ns

≤ 2.5 dB

AOFM0009-TL300-P01-1064

1064 nm

300 MHz

PM980

≤ 6 ns

≤ 3 dB

AOFM0001-TL040-P02-1550

1550 nm

40 MHz

PM1550

≤ 60 ns

≤ 2.5 dB

AOFM0013-TL080-P02-1550

1550 nm

80 MHz

PM1550

≤ 60 ns

≤ 2.5 dB

AOFM0007-TL200-P03-1550

1550 nm

200 MHz

PM1550

≤ 10 ns

≤ 3 dB

Part NumbersWavelength

Active Aperture

Operating Frequency

Loss Modulation

Material

Cooling

AOQS0015-FL027-040-1064

1064 nm

4 mm

27.12 MHz

> 85%

Fused silica

Water-cooled

AOQS0003-FL027-060-1064

1064 nm

6 mm

27.12 MHz

> 85%

Fused silica

Water-cooled

AOQS0016-FL041-050-1064

1064 nm

5 mm

40.68 MHz

> 85%

Fused silica

Water-cooled

AOQS0005-QL041-015-1064

1064 nm

1.5 mm

40.68 MHz

> 85%

Crystalline quartz

Conduction-cooled

AOQS0007-QL068-030-1064

1064 nm

3 mm

68 MHz

> 85%

Crystalline quartz

Conduction-cooled

AOQS0008-QL080-010-1064

1064 nm

1 mm

80 MHz

> 85%

Crystalline quartz

Conduction-cooled

AOQS0001-QL080-015-1064

1064 nm

1.5 mm

80 MHz

> 85%

Crystalline quartz

Conduction-cooled

AOQS0009-QL080-020-1064

1064 nm

2 mm

80 MHz

> 85%

Crystalline quartz

Conduction-cooled

AOQS0010-QL080-010-1342

1342 nm

1 mm

80 MHz

> 85%

Crystalline quartz

Conduction-cooled

AOQS0006-QL041-015-1535

1532 nm

1.5 mm

40.68 MHz

>80%

Crystalline quartz

Conduction-cooled

AOQS0011-QL080-010-1550

1550 nm

1 mm

80 MHz

> 85%

Crystalline quartz

Conduction-cooled

AOQS0012-QL041-040-2000

1900- 2100 nm

4 mm

40.68 MHz

> 70%

Crystalline quartz

Conduction-cooled

AOQS0013-QL041-116-10600

10.6 µm

11.6 mm

40.68 MHz

> 80%

Germanium

Water-cooled

Part Numbers

Wavelength

Active Aperture

Resolution

Diffraction Efficiency

Material

AOTF0001-TS020-640_1100

640-1100 nm

2 mm

≤ 10 nm

> 70%

Tellurium dioxide

AOTF0002-TS020-400_700

400-700 nm

2 mm

≤ 5 nm

> 70%

Tellurium dioxide

AOTF2001-TS025-400_1000

400-1000 nm

2.5 mm

≤ 10 nm

> 40%

Tellurium dioxide

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Information

  • Deflectors

Acousto-optic deflectors (AODF) can realize laser beam scanning by changing the RF driving frequency. The scanning position can realize random position, continuous line scanning and sequential point deflection. Depending on the crystal, wavelength, and beam size, we can achieve response times from 0.05 to 15 and precise position control of the nRad. Optimal AODF efficiency usually requires the input laser beam to be set at Bragg Angle. When scanning the laser beam, Bragg Angle mismatch occurs because AODF can only perform optical alignment at one driving frequency. In general, this results in reduced efficiency.

  • Frequency Shifters

After the laser beam passes through all the acoustooptic devices, the diffraction output beam will generate frequency shift. Acousto optic frequency shifters (AOFS) are compact devices specially designed for frequency shift. Depending on the selected Angle of incidence, the AOFS will shift the frequency up or down by the frequency of the applied RF signal, and two or more devices can be cascaded to achieve a sum or difference frequency combination. Our AOFS products adopt specially designed acoustic absorber angles to minimize sound reflection and improve the efficiency of AOFS.

  • Free Space Modulators

Acousto-optic modulators (AOM) are generally used outside the laser cavity to change the intensity of the incoming laser (amplitude-modulated AM). This can be simple ON/OFF modulation for quick switching or variable level modulation to achieve intensity modulation. The modulation mode is determined by the type of RF driver and can be digital (ON/OFF) or analog (sinusoidal, square wave, linear, random etc.). Generally, the RF driver of AOM adopts fixed frequency. The key parameter of the AOM is the rise/fall time, which defines the achievable “speed” or amplitude modulation bandwidth of the modulation. The rise/fall time is proportional to the beam diameter inside the modulator. Therefore, the diameter of the incident laser beam must be controlled to obtain a fast rise time. The AOM can be used as a shutter (cyclic switch at a set frequency) or as a variable attenuator (dynamically controlling the intensity of the transmitted light). Laser modulation is achieved by controlling the sound wave in the acousto-optic crystal caused by radio frequency.

  • Fiber Coupled Modulators

Acousto-optic modulators (AOM) are generally used outside the laser cavity to change the intensity of the incoming laser (amplitude-modulated AM). This can be simple ON/OFF modulation for quick switching or variable level modulation to achieve intensity modulation. The modulation mode is determined by the type of RF driver and can be digital (ON/OFF) or analog (sinusoidal, square wave, linear, random etc.). Generally, the RF driver of AOM adopts fixed frequency. The key parameter of the AOM is the rise/fall time, which defines the achievable “speed” or amplitude modulation bandwidth of the modulation. The rise/fall time is proportional to the beam diameter inside the modulator. Therefore, the diameter of the incident laser beam must be controlled to obtain a fast rise time. The AOM can be used as a shutter (cyclic switch at a set frequency) or as a variable attenuator (dynamically controlling the intensity of the transmitted light). Laser modulation is achieved by controlling the sound wave in the acousto-optic crystal caused by radio frequency.

  • Q-Switches

Acousto-optic Q-switch (AOQS) works within the laser cavity to generate short-pulses, high-peak power laser by actively controlling the Q-factor of the cavity. AOQS is usually used to modulate the loss of zero-order beam. When the RF drive of AOQS is turned on, the zero-order light cannot form an oscillation of laser in the cavity due to diffraction, and the cavity loss increases and prevents laser output. When the RF drive is turned off for a short time, the optical power accumulated in the laser cavity is emitted in the form of a pulse to generate a pulsed laser. The process can be repeated at rates over 100KHz. AOQS can operate either in the Bragg state, like AOM (Acousto-optic modulator) with a single diffracting beam, or in the Raman-Nath state with multiple diffracting beams.

  • Tunable Filters

Acousto-optic tunable filter (AOTF) is a solid state, electronically addressed, and random access optical passband filter. It can be used to quickly and dynamically select specific wavelengths from wideband or multiline sources. Diffraction occurs when specific matching conditions are met between acoustic beams and beams. Thus, it becomes possible to electronically control filter parameters such as wavelength, modulation depth, and even bandwidth to provide fast (usually US), dynamic, random access optical filtering.

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