Transmitting Data at

77 Mbps

< 5° above the

horizon

LLCD Accomplishments –

No Issues with

Atmospheric Effects like

Fading and Turbulence

Real LADEE Science Data

and Telemetry

Transmitted via LLCD

LLCD Accomplishments – Streaming

HD Video and Delivering Useful

Scientific Data from LADEE to Earth

Disruption-Tolerant Networking (DTN) Demo on LLCD

Delivers File “Bundles” after Brief Cloud Outage

3

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od

Lin

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bun

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de

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UNCLASSIFIED

DEEP SPACE OPTICAL

COMMUNICATIONS

SCaN’s Laser Communications Program:

Next Steps

Deep-Space Optical Communications (DSOC) from Mars Overview, Capabilities and Footprint

Beacon & Uplink

1030 nm

292 kb/s

@ 0.4 AU

1550 nm

Deep Space

Network

(DSN )

TBD

MOC

Optical Comm Ops Ctr.

JPL, Pasadena, CA

Ground Laser Transmitter (GLT)

Table Mtn., CA

5kW, 1m-dia. Telescope

Ground Laser Receiver (GLR)

Palomar Mtn., CA

5m-dia. Hale Telescope

Spacecraft

Flight Laser

Transceiver

(FLT)

4W, 22 cm dia.

CBE MASS (kg) 28

Mass margin (%) 30

CBE POWER (W) 76

Power Margin (%) 31

Optical Head: 45 x 45 x 49 cm

(95E3 cc)

Elect. Box: 29 x 23 x 23 cm

(15E3 cc)

5

Performance using 4W average laser power w/22 cm

flight transceiver to 5m ground telescope

This document has been reviewed and determined not to contain export controlled technical data.

6

Optical Comm for the Mars 2020 Rover

Rover

Optical

Terminal

159 mm

173

mm

• Optical Terminal will support dual links:

“Proximity” link, to optical terminal on orbiter (20 Mb/s max)

Direct-To-Earth link (200 kb/s max, from 0.5 AU)

• Optical Aperture Diameter: 5 cm

• Average Laser Power: 1 W

• DC Power Consumption: 50 W

• Mass: 5.7 kg

• Volume: 4.6 liters

NEAR-EARTH OPTICAL

COMMUNICATIONS

SCaN’s Laser Communications Program:

Next Steps

• Commercial Spacecraft Host

• Flight Payload

– Two LLCD-based Optical Modules and

Controller Electronics Modules

– Two Differential Phase Shift Keying (DPSK)

Modems with BW > 1 .25 Gbps (user rate)

– High Speed Electronics to interconnect the

two terminals, per form data processing, and

to inter face with the host spacecraft

• Two Optical Communications Ground Stations

– Upgraded JPL Optical Communications

Telescope Laboratory (Table Mountain, CA)

– Upgraded LLCD Lunar Laser Ground Terminal

(W hite Sands, NM)

• LCRD Mission Operations Center

– 2 to 5 years of operational network

exper iments

Laser Communication Relay Demonstration

(LCRD) Mission for 2018

8 8

TECHNOLOGY DEVELOPMENT

EFFORTS

SCaN’s Laser Communications Program:

Next Steps

G. Moore’s “Crossing the Chasm”

Model for High-Tech Markets

10

“Pragmatists”

Each group has different expectations for a new, disruptive product:

Innovators see a competitive advantage to allow them to leapfrog their competition…

…While Pragmatists want a COMPLETE SOLUTION to a business problem (the Whole Product Model)

The Whole Product Model for

Infusing Optical Comm into NASA Missions

Generic Product

Additional Software

Additional Hardware

System Integration

Commercial-ization

Ground Network

Training and

Support

Standards and

Procedures

Disruption-Tolerant Networking (DTN), Integrated Operations

And Provisioning SW

Calibration and Certification Test Facilities

at NASA

“Buffer and Burst” Edge Electronics;

Dealing with Multiple Spacecraft

C&DH Interfaces (SpW, MIL-STD-1553, ect)

Compliance with Policy (FAA, LCH); Interoperability With other Agencies (ESA, ect.)

“Non-Ph.D”

Operators, Integrators;

Documentation

Leveraging Telecom Industry “COTS”Components While Building a Vendor Base for Custom HW;

DRIVING COSTS DOWN

CFLOS Analysis; Countering Weather with Multiple

Ground Stations; Providing Fiber Connectivity

While Minimizing Service Costs;

NISN

MOCs

NISN

MCC

2014-2015 Add: • Standard Services and Interfaces • Delay Tolerant Networking • Deep Space Antenna Array • Lunar Optical Pathfinder (LADEE) • TDRS K, L • Increased microwave link data rates

Mars

Venus

Mercury Sun

Jupiter

Saturn

Titan

Pluto

Charon

Neptune

Uranus

Antenna Array

LADEE

Microwave Links Optical Links NISN

2018 Add: • Uniform commitment process via Customer

Service Management Element • Space Internetworking • Lunar Comm Relay Demo and ISS Terminal • Near Earth Optical Initial Capability • TDRS M • Lunar Relay Payload (potential)

2023 Add: • Space Based Relay Initial Capability • Enhanced Optical Initial Capability • Deep Space Optical Relay Pathfinder • Lunar Relay Initial Capability to Support

Exploration

2025 Add: • Deep Space Optical Initial Capability • Space Internetworking throughout Solar System • Significant Increases in Bandwidth • Retirement of Aging RF Systems • Mars Orbiting Data Relay Satellite Capability

• Possible streaming video from Mars

Lunar Relay Payload (potential)

Laser Comm Relay Demo

SCaN CSME

Deep Space Optical Relay Pathfinder

Lunar Relay

SCaN Services Provide: • Integrated service-based architecture • Space internetworking (DTN and IP) • International interoperability • Significant increases in bandwidth

12