EDGE Technologies Blog
Insights, updates, and technical deep-dives into optical networking, telecommunications, and data center technologies.
Featured Articles
5G in 2025: Progress, Promises, and the Path Ahead
Comprehensive analysis of 5G progress in 2025, covering standalone networks, 5G Advanced features, private deployments, regional rollouts, and the path from current capabilities to 6G development.
Deep Space Optical Communications (DSOC) mission and its impact on our future
NASA's Deep Space Optical Communications (DSOC) mission on the Psyche spacecraft demonstrates revolutionary laser communication technology, achieving data rates up to 267 Mbps from deep space.
All Articles
LPO vs DSP Optical Transceivers: Key Differences and Use Cases
LPO vs DSP optical transceivers comparison: LPO reduces power by 50% and cuts latency but limited to 500m-2km reach, while DSP offers reliability for longer distances at higher cost.
Are mobile networks dying? How Starlink’s direct-to-cell is changing the game
Starlink's direct-to-cell technology is revolutionizing mobile connectivity, filling gaps in traditional networks rather than replacing them. Discover how satellites work with carriers.
SFP+ to RJ45 connection in Data Center
10G SFP+ to RJ45 connection using copper transceivers enables seamless datacenter integration. Supports 10G/5G/2.5G/1G speeds over Cat6a/7 cables up to 30-80m for server-switch connectivity.
Liquid cooling for data centers – Will telecom engineers need plumbing courses?
Liquid cooling is transforming data centers as AI demands push power densities beyond air cooling limits. Explore direct-to-chip, immersion cooling, and why telecom engineers need new skills.
Global Internet traffic growth forecast: Looking forward from 2024
Global internet traffic grew 22% annually from 2019-2022, reaching 5291 Exabytes. Future growth of 20-25% CAGR expected through 2030, driven by mobile expansion and emerging AR/VR technologies.
Coherent Optics: Modulations, DSP, Applications & FAQ
Coherent optics use QPSK/QAM modulation for 400G/800G high-bandwidth, long-distance transmission vs. NRZ/PAM4. Learn modulation types, DSP functions, pros/cons for network infrastructure.
SFP56: Modern Twist on a Classic
50G SFP56 transceivers double SFP28 data rates using PAM4 technology while maintaining SFP form factor compatibility. Ideal for data centers, 5G networks, and cost-effective bandwidth upgrades.
CWDM vs DWDM: a Comprehensive Guide in Understanding Differences
Learn the key differences between CWDM and DWDM technologies. Compare channel spacing, transmission distance, capacity, and costs to choose the right WDM solution for your network.
BIDI transceivers - The Future in 100G Era
BIDI transceivers offer cost-effective 100G optical solutions for data centers. Using dual wavelengths on a single fiber, these modules reduce infrastructure costs while supporting migration paths.
All about 10G to 400G Active and Passive cables
Learn about DAC cables, AOC cables, and optical transceivers for data center connections. Compare passive vs active cables, understand form factors, and discover cost-effective solutions.
Forward error correction (FEC)? - 100G FEC, 400G FEC and more
Forward Error Correction (FEC) corrects transmission errors in fiber optic networks by adding redundant bits to data streams, enabling longer distances and better performance in 100G+ systems.
QSFP-DD vs QSFP28/QSFP56 – What Are The Differences?
Complete comparison of QSFP-DD vs QSFP28 vs QSFP56 optical transceivers. Learn key differences in data rates (400G/200G/100G), modulation types, power consumption, and form factors.
25G SFP28 CWDM – Passive CWDM 3rd generation
25G SFP28 CWDM delivers 2.5x throughput increase over 10G systems, supporting up to 12 channels over 40km with cost-effective passive CWDM technology for metro networks and data centers.
400G Ethernet Transceivers – Introduction
Learn about 400G Ethernet transceivers, the next evolution beyond 100G. Covers PAM4 encoding, DSP technology, QSFP-DD form factors, and types like SR8, CWDM4. Essential for data centers.
25G SFP28 transceivers: Quo Vadis?
25G SFP28 transceivers drive network evolution from 10G to 100G Ethernet, enable 5G fronthaul at 24.33 Gbps, and support 32G Fiber Channel SANs with backwards compatibility and future-proof design.
100G Single Lambda (100G PAM & Single Lambda)
PAM4 transceivers double data throughput using 4-level signaling, enabling 200G-400G networks. Major vendors like Cisco and Huawei adopt this technology for future data centers.
100G QSFP28 module types and main differences
Complete guide to 100G QSFP28 transceivers covering SR4, SWDM4, PSM4, CWDM4, and LAN WDM technologies for MMF and SMF connections. Learn distance capabilities, wavelengths, and applications.
Transceiver testing and quality requirements
Learn the critical manufacturing steps for optical transceiver modules, including calibration, wavelength testing, aging tests, and lens cleaning to ensure optimal fiber optic communication.
From womens perspective on Network Engineers
A woman's perspective on network engineers, debunking stereotypes about physical traits, personality, and introversion while exploring what makes effective IT professionals beyond gender bias.
Metro Transport Network in 2019
5G networks demand advanced metro transport infrastructure with higher bandwidth, lower latency, and enhanced capacity. Explore how 25G Ethernet and xWDM technologies enable cost-effective upgrades.
Optical Transceiver Market Trends in 2018
Optical transceiver market projected to reach $6.87B by 2022 with 13.4% CAGR. Key trends: 10G to 100G migration, QSFP28 dominance, China-US trade impacts, and emerging 25G/400G technologies.
Storage protocols comparison – Fibre Channel, FCoE, Infiniband, iSCSI?
Comprehensive analysis of storage protocols (Fibre Channel, iSCSI, FCoE, InfiniBand) for data centers. Compare bandwidth, latency, costs to choose optimal storage infrastructure.
Compact SFP (CSFP) – What it is and when it is used?
Compact SFP (CSFP) optical transceivers enable 2x Gigabit Ethernet from a single port, doubling network density. Learn differences between SFP, BiDi SFP, and CSFP modules plus vendor compatibility.
You ask – We Answer: Top SFP-10G-SR Questions Customers Are Asking
Complete SFP-10G-SR guide covering specs, compatibility, and distance limits. Learn the differences between SFP-10G-SR vs LR, troubleshoot connections, and optimize short-range 10G networks.
Passive xWDM Wireless Fronthaul Basics
Passive xWDM enables efficient CPRI transport for wireless fronthaul networks. Using CWDM/DWDM multiplexing, operators can combine multiple wavelengths on single fiber for C-RAN deployments.
10G Copper SFP+ – Necessary & Useful Option
10G Copper SFP+ transceivers offer useful connectivity but aren't ideal for mass data center deployment due to higher latency (2.6ms vs 0.1ms optical), power consumption, and costs.
Tunable Optical Transceivers – When To Use?
Expert guide comparing tunable vs fixed wavelength DWDM transceivers. Learn when tunable optical transceivers justify their higher cost in metro Ethernet and OTN applications.
3rd Party Components & Vendor Warranty
Major network vendors like Cisco, Juniper & Brocade void warranty if 3rd party transceivers cause defects. Learn warranty policies & why quality 3rd party SFPs are safe alternatives.
Cisco 100g CPAK transceiver availability ?
Cisco's proprietary 100G CPAK transceiver uses silicon photonics but faces competition from open-source alternatives like CFP4 and QSFP28, raising concerns about vendor lock-in.
Shift to 100G: Huge but in future?
100G optical transceivers see mixed market performance: telecom revenues dropped 7% to $762M in 2014, while data center sales surged 21% to $1.4B. 40G QSFP drives growth ahead of major 100G adoption.
Should You Buy 3rd Party SFP+?
Third-party SFP+ modules offer identical quality to vendor-branded ones at 10x lower cost. Learn why vendors markup optical transceivers and how 3rd party options provide flexibility.
CFP Optical Transceiver: The Basics 2
CFP optical transceivers enable 100G networking through hot-pluggable modules. Learn CFP architecture, electrical interfaces like CAUI, and popular implementations including SR10, LR4, and ER4.