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电光调制器Electro-Optic Modulators

Leysop电光相位调制器
 
来自英国的Leysop公司是一家专业的电光器件制造商。超过二十年的专业制造经验、具有优秀素质的员工与先进的制造设备为优质的产品与服务提供了保证。目前,Leysop公司提供一系列的电光器件及驱动、法拉第旋转器,光学偏振器、极化器与衰减器。
 

EM 200A  
这是一款低电压ADP横向模式调制器。该器件可工作在整个可见光波段,并且没有压电共振现象。这款调制器具有较高的温度稳定性,但是在需要长期直流幅度的地方,它应该在恒温条件下使用。调制频率不受器件本身特性的限制,而是受电容的限制。因此,调制频率实际上是取决于所用的驱动电路。我们在所有的器件上都镀有宽带增透膜。   


EM 200K  
这是一款低电压的横向模式KD*P电光调制器。该器件比ADP类型的调制器具有更好的热稳定性。它的工作范围延伸到了红外波段,消光比也比对应的ADP类型调制器高。  


EM 200L  
这是一款采用了高损伤阈值LiNbO3晶体的低电压横向电光调制器。它具有与EM200K型调制器相似的类型,工作范围也延伸至了红外波段。 

型号

EM200K

EM 200A

EM 200L

晶体类型

KD*P

ADP

LiNb03

孔径

2.2mm

2.2mm

2.2mm

晶体长度

2x40mm

4 x 20mm

2 x 20mm

633nm时半波电压

220V

220V

220V

晶轴方向

 Z4

45°y-cut

z-cut

波长范围

0.2——1.2微米

0.3 - 1.0微米

0.5 - 4.0微米

Windows

BK7

BK7

Quartz

最大连续外加电压

250

250

400

消光比

2001

 100:1³

 200:1³

电容

40pf

60pf

60pf

直径

40mm

40mm

40mm

长度

110mm

110mm

110mm

光透过率

>90%

> 85%

> 90%

连接器

BNC

BNC

BNC

 
谐振相位调制器: PM50-100 (50MHz~100MHz)
将电光晶体部分制成一个调谐电路,相对较低的驱动电压就能够被用于p弧度的相位调制。 对于50MHZ到100MHZ范围,附加于晶体两端的增强电压是50ohm输入驱动的10倍左右。在调谐电路中,所要求的驱动功率通常小于1W。

Optical wavelength range
600 - 1300 nm
(Lithium Tantalate)
Crystal Configuration
Brewster cut or
ar/ar normal incidence rod
Aperture
2mm
RF Drive power
2 watt maximum for p radians
Tuning range of optical head
± 15% of centre frequency
Voltage gain from tuned circuit
» 10
Input impedance of head
» 50 W
Note: These are typical specifications taken from a phase modulator operating at 70 MHz.

行波宽带相位调制器: PM1000 (1GHz)
当频率高于100MHz时,我们发现从调谐电路中获得的电压效率降低很快。随后,我们发现一个常规的调制器特性更好,但是我们采用了伪行波装置来提供50 ohm特别电阻和光电相位速率匹配来将带宽最大化。使用这一装置,我们制作了对1GHz相应的相位调制器。在这一频率下的高功率放大器(50W)使得在晶体上加载峰峰值约140V的电压成为了可能,这为多数应用的调制深度提供了足够的度数。该器件无驱动或负载。

Optical Wavelength range
600 - 1300 nm Lithium Tantalate
200 - 600 nm (ADP)
Aperture
1.5mm typical
Characteristic design impedance
» 50W
Drive Power
Up to 50 watts

Lithium Niobate Electro-Optic Modulators

Thorlabs free-space electro-optic (EO) amplitude and phase lithium niobate modulators combine our experience with crystal growth and electro-optic materials. Our standard modulators use undoped lithium niobate. For higher power operation, we offer MgO doped lithium niobate. The standard EO modulators are broadband DC-coupled, though a high Q resonant model option is available.

Features

  • High Performance in a Compact Package
  • Broadband DC Coupled
  • 2 mm Diameter Clear Aperture
  • SMA RF Modulation Input Connector
  • DC to 100 MHz
  • Custom OEM Versions Available

Standard DC-Coupled Broadband Modulators

Our broadband EO modulators consist of an EO crystal packaged in a housing optimized for maximum RF performance. The RF drive signal is connected directly to the EO crystal via the SMA RF input. An external RF driver supplies the drive voltage for the desired modulation. The crystal may be modulated from DC up to the frequency limits of the external RF driver. Please see the Specs tab for amplifier requirements.

High Q Resonant Option

For flexibility Thorlabs also offers a second modulator option. Resonant mode modulators developed by Nova Phase simplify the driver requirements for many applications where the modulator is operated at a single frequency. A high Q resonant tank circuit located inside the modulator boosts the low level RF input voltage from a standard function generator to the high voltage needed to get full depth of modulation.

排序方式-
Glan Thompson Polarizer Mounting Adapter with GTH5M

Glan Thompson Polarizer Mounting Adapter with GTH5M

  • Glan Thompson Polarizer Mounting Adapter with GTH5M
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Glan Thompson Polarizer Mounting Adapter

Glan Thompson Polarizer Mounting Adapter

  • Glan Thompson Polarizer Mounting Adapter
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High Voltage Amplifier for EO Modulators (115V Only)

High Voltage Amplifier for EO Modulators (115V Only)

  • High Voltage Amplifier for EO Modulators (115V Only)
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EO Phase Modulator, Wavelength = 400-600nm

EO Phase Modulator, Wavelength = 400-600nm

  • EO Phase Modulator, Wavelength = 400-600nm
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EO Phase Modulator, Wavelength = 1250-1650nm

EO Phase Modulator, Wavelength = 1250-1650nm

  • EO Phase Modulator, Wavelength = 1250-1650nm
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EO Phase Modulator, Wavelength = 900-1250nm

EO Phase Modulator, Wavelength = 900-1250nm

  • EO Phase Modulator, Wavelength = 900-1250nm
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EO Phase Modulator, Wavelength = 600-900nm

EO Phase Modulator, Wavelength = 600-900nm

  • EO Phase Modulator, Wavelength = 600-900nm
  • 详细 收藏

EO Amplitude Modulator, Wavelength = 400-600nm

EO Amplitude Modulator, Wavelength = 400-600nm

  • EO Amplitude Modulator, Wavelength = 400-600nm
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EO Amplitude Modulator, Wavelength = 1250-1650nm

EO Amplitude Modulator, Wavelength = 1250-1650nm

  • EO Amplitude Modulator, Wavelength = 1250-1650nm
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EO Amplitude Modulator, Wavelength = 900-1250nm

EO Amplitude Modulator, Wavelength = 900-1250nm

  • EO Amplitude Modulator, Wavelength = 900-1250nm
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EO Amplitude Modulator, Wavelength = 600-900nm

EO Amplitude Modulator, Wavelength = 600-900nm

  • EO Amplitude Modulator, Wavelength = 600-900nm
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