Bookham New Focus 2051 Скачать руководство пользователя страница 2

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U S E R ’ S G U I D E

10-MHz Adjustable
Photoreceivers

Models 2051 & 2053

2584 Junction Avenue • San Jose, CA 95134-1902 • USA

phone: (408) 919–1500 • e-mail: [email protected] • www.newfocus.com

205x 10MHz Adj Rcvr revA.fm Page 1 Monday, January 10, 2005 9:29 AM

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Содержание New Focus 2051

Страница 1: ...underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos I...

Страница 2: ...2584 Junction Avenue San Jose CA 95134 1902 USA phone 408 919 1500 e mail contact newfocus com www newfocus com 205x 10MHz Adj Rcvr revA fm Page 1 Monday January 10 2005 9 29 AM Artisan Technology Gro...

Страница 3: ...ight 2004 New Focus Inc a division of Bookham Technology plc All rights reserved The logo and NEW FOCUS Inc are trademarks or registered trademarks of Bookham Technology plc in the U S A or other coun...

Страница 4: ...e 13 Measuring Bandwidth 13 Measuring Noise 13 Performance Data for Frequency Response 16 Performance Data for Noise 18 Characteristics 21 Physical Specifications 21 Model 2051 Specifications 22 Model...

Страница 5: ...4 Contents NEW FOCUS Inc 205x 10MHz Adj Rcvr revA fm Page 4 Monday January 10 2005 9 29 AM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 6: ...each model Complete specifications begin on page 21 The 10 MHz three stage transimpedance amplifier includes selectable gain and selectable low and high pass filters for easy signal optimization Mode...

Страница 7: ...the photodiode responsivity by 1 5 For more information on frequency response and noise see page 13 800 0 0 0 2 0 4 0 6 0 8 1 0 Wavelength nm 400 Responsivity A W 1200 1600 2051 2053 Note Note 205x 10...

Страница 8: ...DC ON for battery use Batt Mode ON 5 Align the optical beam onto the detector The photodiode is not very large so take care when aligning the beam 6 Adjust the gain Use the knob and rocker switch on t...

Страница 9: ...esh ones Replacing the Batteries The Model 205X is shipped with two fresh 9 V batteries installed To avoid confusion due to low batteries replace the batteries on a monthly basis when the receiver is...

Страница 10: ...andwidth is limited by amplifier gain bandwidth product The plots of Figure 3 show the typical frequency responses for the different gain settings Figure 2 Functional schematic of the Model 205X circu...

Страница 11: ...or these receivers is from a few nanowatts up to 2 to 5 mW depending on the model and gain setting Be careful to keep the optical power below the maximum optical power of 10 mW to avoid damaging the p...

Страница 12: ...toreceiver is determined by the input optical power at which either stage of the transimpedance gain saturates We can calculate the saturation power at 900 nm for the Model 2051 at its maximum output...

Страница 13: ...General Features Principles NEW FOCUS Inc 205x 10MHz Adj Rcvr revA fm Page 12 Monday January 10 2005 9 29 AM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg co...

Страница 14: ...ined as the frequency where the gain has decreased by 3 dB or a factor of Measuring Noise The photoreceiver noise is characterized using the noise equivalent power NEP which is a measure of the weakes...

Страница 15: ...se by R the detector s responsivity see page 6 From DC to 150 kHz the average photocurrent noise for the Model 2051 on the high gain setting is about 0 34 pA corresponding to an average NEP at 900 nm...

Страница 16: ...0 35 V mW 0 68x10 9 mW 3 mVrms The Johnson noise at the input of a 100 MHz bandwidth oscilloscope with 1 M input impedance is 1 6 mVrms This is often the limiting factor in broadband measurements Summ...

Страница 17: ...frequency bandwidth is defined as the frequency where the photoreceiver s transimpedance gain has decreased by a factor of The typical frequency responses for the Model 2051 and Model 2053 are shown i...

Страница 18: ...Gain dB x1 x3 Gain Setting 103 6 3 0 3 0 01 0 1 1 Frequency MHz Normalized Gain dB x1 x3 Gain Setting 104 6 3 0 3 0 01 0 1 1 Frequency MHz Normalized Gain dB x1 x3 205x 10MHz Adj Rcvr revA fm Page 17...

Страница 19: ...h in the 3x103 gain setting the equivalent noise bandwidth is 2 x 4 x 700 x 103 Hz 1 1 MHz so the predicted output noise voltage is approximately 0 65 Vrms x 0 7 mVrms Because the NEP is listed at the...

Страница 20: ...205X Noise pA Hz 205X Output Noise Current 0 20 0 25 0 30 0 35 0 40 0 10 20 30 40 50 60 70 80 90 100 Frequency KHz Spec Gain 3 x 104 205x 10MHz Adj Rcvr revA fm Page 19 Monday January 10 2005 9 29 AM...

Страница 21: ...Frequency Response and Noise NEW FOCUS Inc 205x 10MHz Adj Rcvr revA fm Page 20 Monday January 10 2005 9 29 AM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg c...

Страница 22: ...2 1 24 31 5 2 31 58 6 8 32 M4 THD 1 78 45 2 1 16 29 3 power switch low freq corner adjust knob high freq corner adjust knob gain multiplier switch SMA output connector external power input 15VDC gain...

Страница 23: ...W CW Saturation Power 20 mW 850 nm Max Differential Power 20 mW 850 nm Max Power per Photodiode if balanced damage threshold 20 mW 850 nm Detector Material Type Si PIN Detector Active Area 1 0 mm x 0...

Страница 24: ...W Saturation Power 10 mW 1600 nm Max Differential Power 10 mW 1600 nm Max Power per Photodiode damage threshold 10 mW 1600 nm Detector Material Type InGaAs PIN Detector Active Area 0 3 mm diam FS 0 1...

Страница 25: ...6 683 6287 from the USA Canada only Phone 408 919 1500 Support is also available by fax and email Fax 408 980 8883 Email techsupport newfocus com We typically respond to faxes and email within one bus...

Страница 26: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...