Price of optical module over 40km

Optical modules for 40 km range vary widely in price, from around $100–$500 for 10G SFP+ modules to over €500 for 100G QSFP28 modules, with 400G QSFP-DD modules typically costing significantly more.10G Optical Modules

10G SFP+ modules designed for 40 km single-mode fiber typically operate at 1310nm or 1550nm and support 10 Gigabit Ethernet. Examples include:

• Optcore 10Gb/s CWDM SFP+ ER: Supports 40 km over single-mode fiber, compatible with 10GbE switches and routers, with CWDM wavelengths from 1470nm to 1610nm .
• SFP-10G-ER 1550nm DDM: Compatible with Cisco, Huawei, Juniper, and other platforms, supporting 20/40/60 km links .
• SFP-10G-ER40 1310nm: Provides extended reach with EML transmitter and APD receiver, supporting real-time diagnostics via DOM/DDM . Price range: Typically $100–$300 per module, depending on brand, wavelength, and vendor.

100G Optical Modules

100G QSFP28 modules for 40 km use 4WDM channels and require host-side FEC for full reach:

• 100G-4WDM-QSFP40KM: Supports 100GBASE-4WDM over 40 km single-mode fiber, LC duplex connectors, and cooled EML transmitters. Price is listed at €508 .

400G Optical Modules

400G QSFP-DD ER4 modules are designed for high-capacity networks over 40 km:

• 400G QSFP-DD ER4 40km: Supports 400G transmission over single-mode fiber, compatible with multiple vendor platforms, often sold in bulk or customized configurations . Price range: These modules are significantly higher, often several thousand dollars per unit, depending on vendor and customization.

Summary

• 10G SFP+ (40 km): $100–$300
• 100G QSFP28 (40 km): ~€500
• 400G QSFP-DD (40 km): Several thousand dollars, depending on specifications Prices vary based on vendor, brand compatibility, wavelength, and additional features such as digital diagnostics (DOM/DDM) or CWDM support. For exact pricing, contacting suppliers or checking online distributors is recommended.