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High Speed Photodetector

High Speed Photodetector

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LK-HSPD High Speed InGaAs Photodetector

  • Wide Bandwidth，High Speed
  • Incorporated Bias-T
  • DC Coupled
  • Hermetically Sealed, SMA Connector
  • Low Dark Current，high signal-to-noise ratio.
  • Small Form Factor.
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Product Description

LK-HSPD high-speed detection module is engineered to cater to both digital and analog uses. This module is equipped with an InGaAs PIN photodiode that has a response wavelength ranging from 1250 to 1650 nm, along with the essential matching electronics.

LK-HSPD is capable of delivering bandwidths of 8 GHz, 12 GHz, 18 GHz, 22 GHz, and 30 GHz. The operation of the module is based on a power supply of either +3.3V or +5V, depending on the specific model. It is designed to work with a standard single-mode fiber of 9/125μm. The RF output features an SMA-compatible connector or a 2.92 mm connector, both with a 50 ohm impedance match.

LK-HSPD is hermetically sealed to safeguard against environmental factors, thereby enhancing its durability and reliability. It boasts a lightweight design, with a mass of less than 15 grams, which is ideal for applications where weight is a critical factor. The module is certified in accordance with the Restriction of Hazardous Substances (RoHS) Directive 2.0, confirming its compliance with stringent environmental and safety regulations.

Technical Specifications
Typical & Absolute Maximum Rating
ParameterSym.TypRatingUnit
Storage temperature rangeTSTG-45 ～ +85-55 ～ +100℃
Operating case temperature rangeTC25-40 ～ +85℃
Bias VoltageVR3.3 or 52.8 ～ 5.25V
Optical Input PowerPin+3+10dBm
Burn-out Optical PowerPB-+13dBm
Lead soldering temperatureTp280（10s）330（10s）℃
Electrical / Optical Characteristics ( TC = 22 ± 3 ℃ )
ParameterSymTest ConditionParameter ValuesUnit
Wavelength Rangeλ－1000～1650nm
Frequency Range－－C-BandX-BandKu-BandKu+-BandK+-BandPLUS－
Small Signal Bandwidthf-3dBTC= 22 ± 3℃0.1～80.3～120.8～182～222～300.3～18GHz
ResponsivityReVR , Pin=1mWλ = 1310nm≥ 0.85≥ 0.85≥ 0.8≥ 0.75≥ 0.75≥ 0.75A/W
λ = 1550nm≥ 0.95≥ 0.95≥ 0.75≥ 0.70≥ 0.65≥ 0.70
Amplitude FlatnessATC =-40～+85 ℃≤±1.5≤±1.5≤ ±1.5≤±2≤±2≤±1.5dB
Output VSWRVSWR－≤ 2≤ 2≤ 2.5≤ 2.5≤ 2.5≤ 2.5－
Bias VoltageVR－+3.3+3.3+3.3+3.3+5+5V
RF Connector－－SMASMASMA2.92mm2.92mmSMA－
Saturation Optical PowerPsVR , λ = 1550nm
AC Modulated		+7+7+7+7+7+10dBm
Dark CurrentIdVR≤ 10≤ 10≤ 10≤ 10≤ 10≤ 10nA
Saturation RF Output PowerPout－-10dBm
Output ImpedanceRL－50Ω

● Typical Response Curves

(VR , λ=1550nm , TC =25 ºC ,Pin=0dBm)

(Fig.1 C-Band Photodetector Frequency Response)

(Fig.2 X-Band Photodetector Frequency Response)

(Fig.3 Ku-Band Photodetector Frequency Response)

(Fig.4 K+ -Band Photodetector Frequency Response)

● Dimension and Pins (Unit:mm[ inch])

RF Connector： SMA or 2.92mm

● Ordering Information

Sheet 1：

Code Analog Bandwidth
C0.1 ～ 8GHz
X0.3 ～ 12 GHz
Ku0.8 ～ 18 GHz
Ku+2 ～ 22 GHz
K+2 ～ 30 GHz
Plus0.3 ～ 18 GHz

Sheet 2：

CodeConnector TypeRemark
NNo ConnectorSingle-mode 9/125 μm fiber pigtail
AFC/APC
PFC/PC

● Precautions

  • The fiber bending radius no less than 20mm for avoiding fiber damaged .

  • Be sure the fiber coupling facet is clean before connecting it to opto-circuit .

  • The suitable ESD protection is required in storage, transportation and using .

All of our standard photodetectors can be customized into modules！

Applications

  • Optical-fiber Communication

  • Radar Information Processing

  • Electronic Warfare

  • High-speed Signal Test and Measurement

  • Security and Surveillance

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