Fiber Optics - Transmitters

Fiber Optics - Transmitters - Discrete

Image	Part Number	Description / PDF	Quantity	Rfq
	OPF342B TT Electronics / Optek Technology	LED FBR OPTC GAAIAS HS TO-46 ST	0
	HFE4020-313/AAA Honeywell Sensing and Productivity Solutions	FIBER OPTIC TRANSCEIVER	0
	20400123821 HARTING	RECEPTACLE 16WAY 6X LED 660NM	0
	V850-2174-001 Finisar Corporation	VCSEL ARRAY 850NM 1X12 5GBPS CC	0
	V850-2312-900 Finisar Corporation	PHOTODIODE	0
	HFE4070-500/BAA Honeywell Sensing and Productivity Solutions	FIBER OPTIC LED	0
	20400034823 HARTING	RECEPTABLE 3-WAY ANGLED (1XT, 2X	0
	OPF390A TT Electronics / Optek Technology	LED FIBER OPTC GAAIAS HS TO18 ST	0
	HFE4020-313/BAA Honeywell Sensing and Productivity Solutions	FIBER OPTIC TRANSCEIVER	0
	V940-2259-002 Finisar Corporation	PHOTODIODE	0
	OPF372C TT Electronics / Optek Technology	LED FIBER OPTIC GAAIAS TO-18 ST	0
	OPF392C TT Electronics / Optek Technology	LED FIBER OPTC GAAIAS HS TO18 ST	0
	HFE1011-001-ABA Honeywell Sensing and Productivity Solutions	FIBER OPTIC DETECTOR	0
	OPF371A TT Electronics / Optek Technology	LED FIBER OPTIC SMA	0
	OPF347D TT Electronics / Optek Technology	LED FBR OPTC GAAIAS HS TO-46 ST	0
	HFE1011-5080 Honeywell Sensing and Productivity Solutions	FIBER OPTIC DETECTOR	0
	HFBR-1505C Broadcom	XMITTER FIBER OPTIC INTERBUS SMA	0
	OPF692-1 TT Electronics / Optek Technology	LED PHOTOSENSOR PAIR SIDE LOOK	0
	HFE4070-500-AAA Honeywell Sensing and Productivity Solutions	LED 850NM GAALAS SGL SMA	0
	V850-2173-001 Finisar Corporation	VCSEL ARRAY 850NM 1X4 5GBPS CC	0

Fiber Optics - Transmitters - Discrete

1. Overview

Discrete fiber optic transmitters are optoelectronic devices that convert electrical signals into optical signals through individual component packages. They serve as fundamental building blocks in fiber communication systems, enabling data transmission via modulated light waves. These transmitters play critical roles in telecommunications, data centers, and sensing applications due to their high bandwidth efficiency and electromagnetic interference immunity.

2. Major Types & Functional Classification

Type	Functional Characteristics	Application Examples
LED Transmitters	Low-cost, low-power, broad spectral width	Short-distance links ( 2km), premises networks
Laser Diodes (LD)	High power, narrow linewidth, high speed	Long-haul telecom, CATV systems
VCSELs	Low divergence beam, low power consumption	Data center interconnects (100G-400G)
Electro-absorption Modulated Lasers (EML)	Integrated modulation, low chirp	High-speed DWDM systems ( 100Gbps)

3. Structure & Components

Typical discrete transmitters consist of: (1) Light source (LED/LD/VCSEL chip), (2) Optical sub-assembly (OSA) with lens/filter, (3) Electrical interface (bonding wires/PCB), (4) Hermetic package (TO-can or surface-mount). Advanced designs integrate drivers/modulators in photonic integrated circuits (PICs).

4. Key Technical Specifications

Parameter	Significance
Wavelength (1270-1610nm)	Determines fiber transmission window and dispersion characteristics
Output Power (-20 to +20dBm)	Affects transmission distance and signal-to-noise ratio
Modulation Bandwidth (DC-67GHz)	Limits maximum data rate capability
Chirp Characteristics	Impacts dispersion penalty in high-speed systems
Operating Temperature (-40 to +85 C)	Determines environmental deployment flexibility

5. Application Domains

Primary industries include: Telecommunications (DWDM networks), Data Centers (QSFP modules), Cable TV (HFC networks), Industrial Sensing (strain/temperature monitoring). Typical equipment: Optical line terminals (OLTs), active optical cables (AOCs), OTDR test instruments.

6. Leading Manufacturers & Products

Vendor	Representative Product
II-VI Incorporated	100G CFP EML transmitter
Lumentum	Multi-junction VCSEL arrays
Finisar (II-VI)	TO-Can DFB lasers
Broadcom	Integrated TOSA assemblies
NeoPhotonics	High-power narrow-linewidth lasers

7. Selection Guidelines

Key considerations: (1) Match wavelength to system requirements (O-band/C-band), (2) Verify output power vs. link budget needs, (3) Ensure modulation bandwidth exceeds data rate requirements, (4) Evaluate thermal stability for operating environments, (5) Consider packaging form factor (TO/ROSA vs. SMT), (6) Balance cost/performance for volume deployments.

8. Industry Trends

Current development directions include: (1) 400G+ transmission through advanced modulation formats, (2) Silicon photonics integration for cost reduction, (3) Shortwave infrared (SWIR) sources for emerging applications, (4) AI-driven digital signal processing co-design, (5) Environmental compliance with RoHS/Green Photonics initiatives. Market growth in 5G fronthaul and automotive LiDAR applications is driving innovation in compact, low-power transmitters.