Future of passive multiplexing Multiplexing beyond 10 G

Future of passive multiplexing & Multiplexing beyond 10 G

From 1 G to 10 G was easy But beyond 10 G? 1 G CWDM/DWDM 10 G CWDM/DWDM Dark Fiber Passive Multiplex er ? 25 G 40 G 100 G 400 G

Ingredients for Multiplexing 1 Dark Fiber 2 Multiplexer 3 Light + Transceiver

Dark Fiber Attenuation → 0 km → → 40 km → → 80 km → Dispersion @1 G → 0 km → → 40 km → → 80 km → @10 G → 0 km → → 40 km → → 80 km →

Dark Fiber Dispersion → 80 km → Attenuation → 80 km → 1310 nm window 1550 nm/DWDM

Ingredients for Multiplexing 1 Dark Fiber 2 Multiplexer 3 Light + Transceiver

Multiplexers 2 types • Cascaded TFF 95% of all communication • AWG -Larger muxes such as 40 Ch/96 Ch

Multiplexers TFF: Thin film filter • Metal or glass tubes 2 cm*4 mm • 3 fibers: com / color / reflect • Each tube as 0, 3 d. B loss • 95% of muxes & OADM

Multiplexers g n i as c S B A

Multiplexers AWG: arrayed wave grading -Larger muxes such as 40 Ch/96 Ch -Lower loss -insertion loss 40 ch = 3, 0 d. B

DWDM 33 Transmission Window AWG Attenuation DWDM 33 Gaussian Fit Low attenuation Small passband Reference passband DWDM 33 Isolation Flat top Higher attenuation wide passband DWDM light ALL TFF is Flat top

Transmission Wave types Flat top: OK DWDM 10 G Coherent 100 G Gaussian Fit not OK DWDM PAM 4

Ingredients for Multiplexing 1 Dark Fiber 2 Multiplexer 3 Light + Transceiver

ITU grids LWDM DWDM CWDM Attenuation Dispersion 10 G 25 G/100 G DWDM Low High 80 km 15 km LWDM High Low 40 km

LWDM multiplexing New ITU band -8 channels in the 1310 nm band -8 x 25 G multiplexing up to 40 km -regular optics and regular passive muxes -possible 8 x 100 G up to 15 km(future) -used in Korea a lot for 5 G deployment LWDM

CF PDC O Modulation & Coherent 100 G 1 0 More info per “pulse” Needs a lot of processing power = Watts Example CFP 2 -DCO = 20 Watts 3 QSFP 28 is 4, 5 W so cannot work 2 Extra “active box” for the CFP 2 -DCO 1 0 DSP chip

QSFP 28 DWDM 100 G DWDM in QSFP 28 PAM 4 modulation Due to modulation no optical power budget Need Amplification = EDFA to work PAM 4 needs Dispersion Compensation Cheapest and easiest 100 G Multiplexing method Microsoft pushed this product Solid Optics offer “All in one box” for 16 x 100 G EDFA+TD CM+MU X DM W D G 100

Summery LWDM / 40 km @ 8 x 25 G LWDM QSFP 28 / 80 km @ 100 G M D W D P QSF CFP 2 -DCO / 120 km @100 G QSFP SR

400 G ZR is coming !! M D W D G 0 0 4 D QSFP-D 1 G DWDM ZR 10 G DWDM ZR 400 G DWDM ZR (EDFA Needed) Dark Fiber Passive Multiplex er

Q&A Wouter van Diepen wouter@solid-optics. com

Workshop 8 x 100 G for 70 km on 4 different brands 100 G machines - explanation of the optics - explanation of the EDFAMUX - explanation of the config DM W D G 100 EDFA+TD CM+MU X

QSFP 28 DWDM Basic check coding so it works on brand + Optional check DWDM channel and Power with DWDM OSA

30 extra 10 G with MUX EDFAMUX Ports 1% Tap/monitor 2 x 10 G/1 G 8 x 100 G

Expand current network with 100 G 40 x 10 G 1 d. B 8 x 100 G 30 x 10 G

EDFAMUX Building Blocks MUX TDCM Booster Post EDFA

Internal Webserver

Config ways Default on can be turned off Static IP DHCP

Unique 2 -minute config SSID: solid Pass: 12345678

1: Slide once 3: rename to solid and password: 12345678 1: Slide Twice Then press long on Mobile hotspot 4: click on EDFAMUX to see IP solid 12345678 EDFAMUX. xxx 192. 168. 1. 1 EDFAMUX. xxx

Just set the km 70 km 192. 168. 1. 2 70 km Set Disp com Set EDFA Booster Set EDFA POST

Additional info Products 2 product lines: 10 G (140 km/200 km) 100 G -16 x 100 G for 80 km in development -8 x 100 G for 120 km in development Software -Open HTML system-> build your own internal website -SNMP in development -HTTP post / get available -API available JSON request

SSID: solid Pass: 12345678 N 3 k Arista 192. 168. 180. 200 admin/Solidoptics 1 192. 168. 180. 210 admin/Solidoptics 1 Huawei 192. 168. 180. 220 netadmin/Solidoptics 1! Juniper 192. 168. 180. 230 root/Solidoptics EDFAMUX 1 192. 168. 180. 1 EDFAMUX 2 192. 168. 180. 2