US 11,716,148 B2
Linearized optical digital-to-analog modulator
Yossef Ehrlichman, Nazareth Ilit (IL); Ofer Amrani, Tel Aviv (IL); and Shlomo Ruschin, Herzliya (IL)
Assigned to Ramot At Tel Aviv University Ltd., Tel Aviv (IL)
Filed by Ramot at Tel Aviv University Ltd., Tel-Aviv (IL)
Filed on May 4, 2022, as Appl. No. 17/736,876.
Application 14/662,343 is a division of application No. 14/325,486, filed on Jul. 8, 2014, granted, now 9,031,417, issued on May 12, 2015.
Application 17/736,876 is a continuation of application No. 17/481,904, filed on Sep. 22, 2021, granted, now 11,342,998.
Application 17/481,904 is a continuation of application No. 16/532,567, filed on Aug. 6, 2019, granted, now 11,133,872, issued on Sep. 28, 2021.
Application 16/532,567 is a continuation of application No. 16/386,391, filed on Apr. 17, 2019, granted, now 10,461,866, issued on Oct. 29, 2019.
Application 16/386,391 is a continuation of application No. 16/234,635, filed on Dec. 28, 2018, granted, now 10,270,535, issued on Apr. 23, 2019.
Application 16/234,635 is a continuation of application No. 15/298,373, filed on Oct. 20, 2016, granted, now 10,205,527, issued on Feb. 12, 2019.
Application 15/298,373 is a continuation of application No. 14/922,165, filed on Oct. 25, 2015, granted, now 9,479,191, issued on Oct. 25, 2016.
Application 14/922,165 is a continuation of application No. 14/662,343, filed on Mar. 19, 2015, granted, now 9,203,425, issued on Dec. 1, 2015.
Application 14/325,486 is a continuation of application No. 13/280,371, filed on Oct. 25, 2011, granted, now 8,797,198, issued on Aug. 5, 2014.
Application 13/280,371 is a continuation of application No. 12/636,805, filed on Dec. 14, 2009, granted, now 8,044,835, issued on Oct. 25, 2011.
Application 12/636,805 is a continuation in part of application No. PCT/IL2008/000805, filed on Jun. 12, 2008.
Claims priority of provisional application 60/943,559, filed on Jun. 13, 2007.
Prior Publication US 2022/0271842 A1, Aug. 25, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H03M 3/00 (2006.01); H04B 10/516 (2013.01); G02F 1/01 (2006.01); G02F 7/00 (2006.01); G02F 1/225 (2006.01); H04B 10/50 (2013.01); H04B 10/25 (2013.01); H04B 10/2575 (2013.01); H04B 10/556 (2013.01); H03M 1/70 (2006.01); H04B 10/54 (2013.01); H03M 1/00 (2006.01); G02F 1/015 (2006.01); G02F 1/21 (2006.01)
CPC H04B 10/516 (2013.01) [G02F 1/0121 (2013.01); G02F 1/225 (2013.01); G02F 7/00 (2013.01); H03M 1/002 (2013.01); H03M 1/70 (2013.01); H04B 10/2575 (2013.01); H04B 10/25891 (2020.05); H04B 10/505 (2013.01); H04B 10/541 (2013.01); H04B 10/556 (2013.01); G02F 1/015 (2013.01); G02F 1/212 (2021.01); G02F 2203/19 (2013.01); H04B 10/5055 (2013.01)] 58 Claims
OG exemplary drawing
 
1. An optical modulation system, the system comprising:
an input for receiving digital input words, each digital input word comprising a plurality of input data bits;
an input optical signal,
wherein the optical modulation system, based on a mapping, maps a digital input word received at the input to a corresponding digital output word comprising a plurality of output data bits,
wherein the mapping specifies, for each digital input word included in a set of possible digital input words for the plurality of input data bits, a corresponding digital output word from a set of possible digital output words for the plurality of output data bits,
wherein, for a first subset of digital input words specified in the mapping and having increasing values, deltas between values of digital output words in the set of possible digital output words, corresponding respectively to digital input words in the first subset, decrease,
wherein, for a second subset of digital input words specified in the mapping and having increasing values, deltas between values of digital output words in the set of possible digital output words, corresponding respectively to digital input words in the second subset, increase, and
wherein the optical modulation system further comprises a modulator for modulating the input optical signal responsively to the digital output word mapped from the digital input word, thereby generating one or more modulated optical signal outputs for transmission over one or more optical fibers.