Electro-Optic Intensity Modulator

Intensity modulator is an optical device used to modulate the intensity (optical power) of an optical signal. It is widely used in optical communications, lidar, optical fiber sensing and other fields.Its core principle is to control changes in light intensity through electrical signals or optical signals.

contact us:lina@glhcoptical.com

 

Product introduction

HC-BN series electro-optic intensity modulators use the electro-optic effect of lithium niobate crystal to realize the intensity modulation of optical signals by using push-pull Mach-Zehnder interference structure. They have the characteristics of low insertion loss, high modulation bandwidth, high extinction ratio, low half-wave voltage and high damage optical power. They are mainly used for electro-optic signal conversion and optical sideband generation in high-speed optical communication systems. High extinction ratio optical pulse generation in quantum communication and microwave optical fiber links.

 

 

Product features

High bandwidth
Low insertion loss

Low half-wave voltage

Multiple operating wavelength

 

 

Scope of application

Microwave fiber optic link
Quantum communication

High-speed optical fiber communication system

 

 

Functional block diagram

 

 

 

 

 

Technical parameters

 

Parameter

Symbol

AM-08

AM-10

AM-15-10

AM-15-20

AM-15-40

Operating wavelength

l

770~880nm

1064±60

1550±100nm

Waveguide technology

Titanium diffusion or proton exchange APE

Insertion loss

IL

<3 dB

<3 dB

<4 dB

<4 dB

<4 dB

Optical return loss

ORL

-40 dB

-45 dB

-45dB

-45dB

-45dB

Operating Bandwidth (-3dB)-RF

High frequency

S21

>10GHz

>10GHz-

>10GHz

>20GHz

>28GHz

Low frequency

<10MHz

Rise time 10% ~ 90%

tr

35ps

35ps

35ps

18ps

11ps

Half-wave voltage @ 50KHz, RF

4V

4V

4V

4.5V

4V

Half-wave voltage @ Bias

6V

6V

5V

5V

5V

Extinction ratio

ER

>20dB

>20dB

> 20dB, typical 25dB

Input impedance

ZRF

50W@RF, 1MW@Bias

Electrical interface

 

2.92mm(f)

1.85mm(f)

Electrical return loss

S11

<-10dB

Input fiber

 

PM780

PM980

PM1550 Panda Slow Axis Alignment

Output fiber

 

PM780

PM980

PM1550 Panda Slow Axis Alignment

Fiber optic interface

 

FC/APC or Customer Specified

Operating temperature

Top

-20~70°C

Storage temperature

Tst

-40~80°C

Electrical Signal Input Power-RF

Pi

<27dBm

Voltage Input Range-BIAS

Vi

±15V

Maximum input optical power

Po

20mW

100mW

50 mW (titanium diffusion), 200 mW (proton exchange APE)

 

 

Characteristic Curve

 

 

 

 

 

 

Mechanical dimensions  (in mm)

 

 

 

 

 

 

 

Ordering Information HC-BN-WL-BW-PP

WL — working wavelength: 15-1550nm,  10-1064nm,  08-770-880nm

 

BW — Operating bandwidth: 10G, 20G, 40G

 

PP — input/output fiber:   PP--PM/PM ,  PS--PM/SM

 

 

 

 

 

If you need more Information , Please contact us .