10G SFP+ DWDM Optical Transceiver Module
Product Overview
The Apex 10G SFP+ DWDM module carries a 10 Gigabit service on one dense wavelength division multiplexing channel of the C-band. Channels are spaced at 100GHz, close enough that dozens of 10G services share one fiber pair without touching the existing traffic, and each module is ordered on a fixed channel.
DWDM is used when CWDM channels are exhausted or the route is longer than a coarse grid can carry. The narrow spacing means more channels per fiber and the C-band sits inside the gain window of erbium doped fiber amplifiers, so 10G DWDM spans can be extended well past the module reach with an inline amplifier at 40km or 80km grades.
Typical use is metro and regional transport, long haul 10G over dark fiber, cable and utility backbones, and data centre interconnect between two sites that have to share one cable. We confirm the channel plan, the mux/demux hardware and the amplification before quoting, and supply the transceivers together with the passive parts and patch cords.
Key Features
- 9.95Gbps to 10.3Gbps line rate for 10G DWDM transport
- 100GHz C-band channel spacing, fixed channel per module
- 40km and 80km grades, extendable with an inline amplifier
- APD receiver on the 80km grade for a longer optical budget
- Duplex LC interface, cooled EML or DFB transmitter
- Digital Diagnostic Monitoring (DDM/DOM) with live optical readings
- Operates with passive DWDM mux/demux, OADM and EDFA modules
- Compliance with SFP+ MSA, ITU 100GHz grid and RoHS
Technical Specifications
| Specification | Detail |
|---|
| Part Number | APX-SFP-10G-xxKM-DWDM-yy (xx = reach, yy = channel) |
| Manufacturer | Apex |
| Data Rate | 9.95Gbps to 10.3Gbps |
| Form Factor | SFP+, hot pluggable |
| Optical Technology | DWDM, single channel per module |
| Channel Plan | 100GHz C-band grid (50GHz builds on request) |
| Reach | 40km and 80km over SMF, longer with amplification |
| Fiber Type | Single Mode Fiber (SMF) |
| Connector Type | LC duplex |
| Receiver | PIN (40km grade), APD (80km grade) |
| DDM / DOM | Supported |
| Supply Voltage | 3.3V |
| Compliance | SFP+ MSA, ITU 100GHz grid, RoHS |
| Temperature | 0 to 70C commercial, -40 to 85C industrial on request |
Ordering Options
Family options are listed below as plain text so they can be copied into an RFQ or a spreadsheet.
| ITU channel | Center wavelength | Common use |
|---|
| CH 20 | 1561.42nm | First channel on a standard plan |
| CH 25 | 1557.36nm | Metro 10G add drop |
| CH 30 | 1553.33nm | Metro 10G add drop |
| CH 35 | 1549.32nm | Regional 10G span |
| CH 40 | 1545.32nm | Regional 10G span |
| CH 45 | 1541.35nm | Long haul 10G span |
| CH 50 | 1537.40nm | Long haul 10G span |
| CH 55 | 1533.47nm | High channel count plan |
| CH 60 | 1529.55nm | High channel count plan |
Applications
Metro and Regional 10G Transport
Puts each 10G service on its own dense channel so a single fiber pair carries the whole route instead of one service.
Long Haul 10G over Dark Fiber
Extends 10G reach beyond the module grade with an inline amplifier, which fits routes where a regenerator would cost more.
Cable, Utility and Data Centre Backbone
Adds 10G capacity between headends, substations or two data centres on the existing cable without new fiber.
Compatibility
10G DWDM modules are coded for the transport, routing or switch platform you name and tested on live ports before shipment. The channel plan matters more than the module vendor, so we ask for the existing channel list, the mux/demux part and whether amplifiers are in line before quoting, and match the wavelength, the grade and the patch cords to that plan.
Related Products
Frequently Asked Questions
Which DWDM channel should I order for a 10G link?
Use the channel plan already running on the route and pick a free channel. Both ends must be on the same channel, and adding a 10G service on an existing amplified span normally only needs the two modules.
Should I use the 100GHz or the 50GHz grid?
100GHz spacing is the standard choice for 10G and shares plans with most installed mux hardware. 50GHz doubles the channel count on the same fiber but needs muxes built for the narrower grid, so we build those on request.
Do I need an APD receiver?
The APD receiver adds sensitivity for the 80km grade and for spans with high loss or several mux stages. On 40km and short amplified links the standard PIN version is the lower cost choice.
Can a 10G DWDM module be used with an EDFA?
Yes. The C-band channels sit inside the amplifier gain window, which is what allows spans beyond the module reach. Share the span loss and amplifier details and we check the budget before shipment.
Why Choose Apex
- Optical engineering support and supply from 1.25G to 800G, including CWDM, DWDM and coherent lines.
- Channel plan, mux hardware and span budget checked before the order is released.
- Every module is tested for optical power, wavelength and error rate before shipment.
- Backed by a 3 year warranty and technical support before and after the sale.
