Fiber Optics - Receivers

Part Number	Description / PDF	Quantity
SP000063860 Broadcom	PHOTO DETECTOR RECEIVER	7498
AFBR-2624Z Broadcom	RCVR OPT DC-50MBD 1MM POF	7708
HFBR-2505AFZ Broadcom	RCVR MOD FIBER OPTIC SERCOS SMA	95
AFBR-2529SIZ Broadcom	VL H 50MBD W RSSI RX ROHS INV	163
HFBR-2412TCZ Broadcom	RECEIVER FIBER OPTIC 5MBD TTL ST	4364
HFBR-2452Z Broadcom	RCVR MOD FIBER OPTIC SMA STR LD	0
HFBR-2412MZ Broadcom	5 MBD RX ST METAL PORT PB-FREE	0
HFBR-2542ETZ Broadcom	RCVR OPT HI PERFORMANCE 1MBD	78
HFBR-2115TZ Broadcom	RCVR MODULE 1300NM 125M 16DIP S	0
HFBR-2119TZ Broadcom	RECEIVER FIBER OPTIC ST 266MBD	0
HFBR-2531 Broadcom	RCVR OPT HI PERFORM 5MBD VERT	0
AFBR-742BHZ Broadcom	RECEIVER 12X2.5GBD PLUGGABLE	0
HFBR-2536 Broadcom	RCVR OPT HI SPEED VERS LINK VERT	0
AFBR-742BEHZ Broadcom	RECEIVER 12X2.5GBD PLUGGABLE	0
HFBR-2404Z Broadcom	RCVR MOD HP FIBER OPT 25MHZ SMA	0
HFBR-2532 Broadcom	RCVR OPT HI PERFORM 1MBD VERT	0
HFBR-2526 Broadcom	RCVR OPT HI SPEED VERS LINK HORZ	0
HFBR-2510Z Broadcom	RCVR OPTICAL 125MBD SMA	0
HFBR-789BEZ Broadcom	RECEIVER 12X2.7GBD 62.5UM FO	0
HFBR-2533 Broadcom	RCVR OPT LOW CURR EXT DIST VERT	0

Fiber Optics - Receivers

1. Overview

Fiber optic receivers are optoelectronic devices that convert optical signals transmitted through optical fibers into electrical signals. As critical components in fiber optic communication systems, they perform photon-to-electron conversion through semiconductor materials like silicon (Si), indium gallium arsenide (InGaAs), or germanium (Ge). Modern high-speed communication networks, sensing systems, and data centers rely on these devices for reliable signal detection with bandwidth capabilities extending from hundreds of MHz to 100+ Gbps.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
PIN Photodiode	High linearity, low capacitance, fast response (ns range)	Telecom networks, optical power meters
APD (Avalanche Photodiode)	Internal gain mechanism, improved SNR	Long-haul DWDM systems, LIDAR
Phototransistor	High sensitivity, low cost	Short-range links, industrial sensors
Integrated Receiver	Combined detector and transimpedance amplifier	400G/800G optical modules

3. Structure and Components

Typical fiber optic receiver architecture includes:

Optical Interface: FC/SC/LSH connectors with anti-reflective coated windows
Photodetector: Semiconductor chip with active area (50 m-2mm diameter)
Thermal Management: Heat sink or TEC (thermoelectric cooler) for stability
Pre-amplifier: Transimpedance amplifier (TIA) for current-to-voltage conversion
Electrical Interface: SMA/BNC connectors or PCB-mounted pads

4. Key Technical Specifications

Parameter	Description	Importance
Responsivity	0.5-1.5 A/W	Determines conversion efficiency
Bandwidth	100MHz-100GHz	Limits data transmission rate
Dark Current	<10nA	Impacts signal-to-noise ratio
Operating Wavelength	850nm/1310nm/1550nm	Matches fiber transmission windows
Dynamic Range	-20 to -60dBm	Defines signal power tolerance

5. Application Fields

Primary application domains include:

Telecommunications: 5G fronthaul/backhaul, DWDM networks
Data Centers: 400G QSFP-DD optical modules
Medical: Endoscopic imaging systems
Industrial: Optical proximity sensors
Aerospace: Fiber optic gyroscopes (FOG)

Case Study: 100G LR4 receiver modules in backbone networks enable 10km transmission with four 25G channels via wavelength division multiplexing.

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
Finisar	FTRx-100G	C-band 100G coherent receiver
Hamamatsu	G12132-01	Planar InGaAs APD array
Lumentum	OC5xx Series	High-power photodiode modules
Thorlabs	DET01CFC	Compact fiber-coupled receiver

7. Selection Guidelines

Key considerations for component selection:

Match wavelength sensitivity to transmitter (850nm/1310nm/1550nm)
Ensure bandwidth exceeds system data rate by 20%
Select appropriate dynamic range for link budget
Evaluate temperature stability (-40 to +85 C operational range)
Consider form factor (TO-can, butterfly package, surface-mount)

Industry Trends Analysis

Future development shows:

Integration of photodetectors with CMOS circuits (SiPh)
Adoption of Bessel filters for 0.5THz+ bandwidth receivers
Cost reduction through silicon photonics mass production
Advancements in single-photon avalanche diodes (SPADs) for quantum communication
Miniaturization for pluggable modules (OSFP, QSFP-DD)

Market growth projections indicate 9.8% CAGR until 2027, driven by 5G and hyperscale data center expansions.