C-Band, L-Band PIN Photodetector with Low Distortion     


C-Band, L-Band PIN Photodetector with Low Distortion are high-performance InGaAs photodetectors designed for analog fiber-optic CATV return path applications. Featuring high responsivity, low intermodulation distortion, and low optical back reflection, these modules ensure reliable signal detection and transmission quality. With hermetically sealed packaging, flexible fiber and connector options, and a wide operating temperature range of −40°C to +85°C, they provide efficient optical detection solutions for CATV receivers and multi-channel fiber-optic communication systems.



Product model


Name Model Price

Parameter


Features

● High Responsivity

● Low Distortion

● Low Back Reflection

● High-Speed Performance 

● Flexible Packaging

Specifications

Test conditions: Temperature = 25°C, VR  = 5 V unless noted. All  specifications without connector.

Parameters

Conditions


EPM 705

Responsivity

λ = 1310 nm

λ = 1550 nm

Minimum

0.80 A/W 0.85 A/W

Distortion product IM2


Maximum

-70 dBc1

Back reflection


Maximum

−40 dB

Dark current


Maximum

5.0 nA

Capacitance3


Maximum

0.75 pF

Bandwidth4


Typical

2.0 GHz

Single mode fiber 900 µm 8.7/125   µm core/cladding


Minimum  Maximum

1.0 m

1.5 m

1. IM2 measured at VR = 12 V, Pavg = 0 dBm, MI = 0.7, Rload = 50 Ω, f1 + f2 = 324.25 MHz, f1 - f2 = 54.25MHz.

2. IM2 measured at VR = 12 V, Pavg = 0 dBm, MI = 0.7, Rload = 50 Ω , f1 + f2 = 850.25 MHz, f1 - f2 = 50.25 MHz.

3. Measured with case grounded.

4. -3 dB point into a 50 Ω load.


Parameters


Specification

Forward current1

Minimum

10 mA

Reverse current2

Minimum

10 mA

Reverse voltage

Minimum

25 V

Power dissipation

Minimum

100 mW

Operating case temperature

Minimum~Maximum

-40°C~85°C

Soldering temperature

Minimum

260°C

Storage temperature λ = 1625 nm

Minimum~Maximum

-40°C~85°C

Note:

1. Under forward bias, current at which device may be damaged.

2. Under reverse bias, current at which device may be damaged.


Dark Current vs. Reverse Bias

C-Band, L-Band PIN Photodetector with Low Distortion2.png


Capacitance vs. Reverse Bias 23°C

C-Band, L-Band PIN Photodetector with Low Distortion3.png

Typical Spectral Response 23°C

C-Band, L-Band PIN Photodetector with Low Distortion4.png


Dimension

Specifications in mm unless otherwise noted.

C-Band, L-Band PIN Photodetector with Low Distortion1.png





Application

● CATV Return Path Systems

● AM Fiber-Optic CATV Receivers

● Multi-Channel Optical Transmission

● Broadband Cable Networks

● Optical Receiver Modules

Ordering Info

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