COMMUNICATIONS COMPONENTS CATV Band Dual Output Modulator Key Features • Flat frequency response • Two optical output ports • Integrated phase modulator • High optical damage threshold Applications • High performance 1550 nm CATV band transmitters The JDSU community antenna television (CATV) band dual output modulator is widely accepted for use in externally modulated 1550 nm transmitters. Two optical outputs offer flat frequency response and excellent composite second order distortion (CSO) performance. This product is rated for operation at optical power levels to 200 mW. A dedicated production line and strict process control measures ensure minimal variation in device-to-device characteristics. Typical Return Loss Curve, S11 Typical Frequency Response, S21 0 1 -5 0 dB dB -10 -1 -2 -15 -20 -25 -3 -4 0.00E+00 -30 4.00E-01 8.00E-01 1.20E+00 -35 0.00E+00 8.00E-01 1.20E+00 Frequency (GHz) Frequency (GHz) NORTH AMERICA : 800 498-JDSU (5378) 4.00E-01 WORLDWIDE : +800 5378-JDSU WEBSITE : www.jdsu.com CATV BAND DUAL OUTPUT MODULATOR 2 CATV Band Dual Output Modulator Schematic VRF Phase Modulator VBIAS PM Fiber In 3 dB SM Fiber Out APETM Waveguides CATV Band Dual Output Modulator Dimensions Diagram (Specifications in inches [mm] unless otherwise noted.) 5.66 [143.8] OUT .90 [22.9] .69 [17.5] DC RF PM .57 [14.5] 2X .33 [8.3] 2X Ø.15 [Ø3.8] THRU 2X .15 [3.8] 4.400 [111.8] 4.70 [119.4] 4.11 [104.4] .37 [9.4] .10 [2.5] .16 [4.0] [ 2X .18 [4.4] 1.02 [25.9] .39 [9.8] 1.70 [43.2] 2.78 [70.5] 3.53 [89.7] CATV BAND DUAL OUTPUT MODULATOR 3 Specifications Parameter General Material Crystal orientation Optical1 Operating wavelength Input optical power On/off extinction ratio Optical return loss Optical insertion loss2 Insertion loss imbalance between outputs Electrical1 Intensity modulator Vπ, signal electrode, 100 MHz Vπ, bias electrode, DC3 Operating bandwidth Amplitude flatness Phase flatness S11 Delta phase optical outputs4 Bias electrode impedance Passive bias point, relative to quadrature, at 1550 nm Phase Modulator Half-wave voltage, DC Operating bandwidth, DC S11 Input impedance Bias port Applied DC voltage Phase modulator port Applied RF power RF port Applied DC voltage Applied RF power Mechanical Input fiber Specification Lithium niobate X-cut, y-propagating Maximum Minimum Maximum Maximum Maximum 1540 to 1560 nm 200 mW 20 dB -45 dB 4.5 dB 1.0 dB Maximum Maximum Minimum Maximum Maximum Maximum Maximum 5.9 V 5.0 V 47 to 860 MHz ±0.5 dB ±5° -18 dB 0.26° >10 kΩ ±3 V Maximum 8.5 V 2.5 GHz -8 dB 50 Ω Maximum Maximum ±15 V Maximum 30 dBm Maximum Maximum 0V 24 dBm Output fiber Electrical connectors (package) Environmental Operating temperature Storage temperature Fujikura SM 15-P-8/125-UV/UV-400, 70 cm minimum Hytrel 900 µm loose tube, 12 inches SMF-28, 95 cm minimum Hytrel 900 µm loose tube 12 inches SMA connectors 0 to 70 °C -40 to 80 °C 1. All measurements made at 23°C unless otherwise noted. 2. Insertion loss is measured at the maximum of the modulator’s transfer function and does not include the 3 dB loss incurred when operated at quadrature. 3. The bias point of this device is most stable when operated with applied DC voltage close to 0 V. 4. For an 80 channel NTSC, 3% OMI CATV link, with correctly operating modulator bias control, 0.26° delta phase yields a maximum of 68 dBc CSO on both outputs. CATV BAND DUAL OUTPUT MODULATOR Ordering Information For more information on this or other products and their availability, please contact your local JDSU account manager or JDSU directly at 1-800-498-JDSU (5378) in North America and +800-5378-JDSU worldwide or via e-mail at [email protected]. Sample: 10020476 Product Code 10020476 Description 1550 nm, PM/SM, no connectors APE is a trademark of JDSU. Hytrel is a registered trademark of E. I. du Pont de Nemours and Company. SMF-28 and Fujikura SM-P-8/125-UV-400 are registered trademarks of Corning Incorporated. All statements, technical information and recommendations related to the products herein are based upon information believed to be reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any inaccuracies. The user assumes all risks and liability whatsoever in connection with the use of a product or its application. JDSU reserves the right to change at any time without notice the design, specifications, function, fit or form of its products described herein, including withdrawal at any time of a product offered for sale herein. JDSU makes no representations that the products herein are free from any intellectual property claims of others. Please contact JDSU for more information. JDSU and the JDSU logo are trademarks of JDS Uniphase Corporation. Other trademarks are the property of their respective holders. ©2006 JDS Uniphase Corporation. All rights reserved. 10133791 Rev. 001 05/06 CATVBDOM.DS.CC.AE NORTH AMERICA : 800 498-JDSU (5378) WORLDWIDE : +800 5378-JDSU WEBSITE : www.jdsu.com